Great white sharks on way to endangered. Great white sharks off the coast of California are safer, at least for now. Great white sharks may be listed as endangered species. California To Consider Listing Great White Shark As Endangered Species. Calif. advances candidacy of great white shark to endangered species list ... Great White Sharks May Soon be Endangered; Jaws Needs Help. Officials Push To List Great White Sharks As Endangered Species. Fish and Game to consider great white shark status.

Status January 10, 2005 ( www.redlist.org) The Red List of the IUCN (The World Conservation Union) contains the names of endangered animal and plant species, and unfortunately includes many shark species. The degree of endangerment to the various species is determined on the basis of seriously documented criteria (see Red List Criteria). Endangered Shark Species. Status January 10, 2005 ( www.redlist.org) The Red List of the IUCN (The World Conservation Union) contains the names of endangered animal and plant species, and unfortunately includes many shark species.

Hammerhead shark is probably the weirdest type of sharks. There are nine species of hammerhead sharks that inhabit all oceans of the world. Hammerhead sharks can be found both in deep and shallow waters. Out of nine species, two are listed as endangered (great hammerhead and scalloped hammerhead) and one as vulnerable (golden hammerhead) species.

Hammerhead sharks can be found both in deep and shallow waters. Out of nine species, two are listed as endangered (great hammerhead and scalloped hammerhead) and one as vulnerable (golden hammerhead) species. People pose the greatest threat for the survival of the hammerhead sharks. They hunt hammerhead shark because of the fins that are served as delicacy in certain parts of the world. After the fins are removed, sharks are returned into the ocean. Sharks without fins cannot swim and they are dying in agony.

Some of the most common predators are dusky shark, great white shark, tiger shark, and bull shark. Mostly the calves fall victim to these enemies. Another reason as to why these species are becoming endangered is that dolphins also suffer from parasites and diseases. Some of these species are really declining in numbers such as Amazon river dolphin, Yangtze river dolphin, and Ganges.

Well there are 9 different species of Hammerhead Sharks : Winghead shark Scalloped bonnethead White fin hammerhead Scalloped hammerhead Scoophead Great hammerhead â¦ Bonnethead Smalleye hammerhead Smooth hammerhead The Great and the Scalloped hammerhead are listed on the World Conservation Union's 2008 Red List as endangered, whereas the Smalleye hammerhead is listed as vulnerable. As for the other species they are not endangered.

MYTH: The Great White is a common shark found off beaches visited by humans. FACT: Great Whites are relatively uncommon large predators that prefer cooler waters. In some parts of their range, great whites are close to being endangered. MYTH: Whale sharks, the largest species of sharks, are voracious predators. FACT: Whale sharks, which are the largest fish that ever lived, are plankton feeders like the great whales, thus the name. A reef shark on the prowl is seldom a target for anglers.

Sharks have no such migrating tendency. Whales are also endangered whereas sharks are not. Summary: 1.When a whale weighs more than 100 tons, the shark weighs about 2,000 kg. 2.Whales give birth to young ones; sharks lay eggs. 3.Plankton and krill are the food of whales.However, toothed whales feed on squid and small fish.hale vs Shark. Whales are mammals and sharks are fish. When whales give birth to young ones, sharks lay eggs. Unlike the young sharks, young whales are fed milk. The whales raise their young ones whereas sharks do not.

50 shark species are listed as vulnerable, endangered, or critically endangered by the IUCN, but only the Great White, Whale, and Basking sharks are protected internationally by CITES (the Convention on International Trade in Endangered Species).

And the lead author of the study says the 2011 study underestimated the number of Great White Sharks in the oceans-and it should not be regarded as an endangered species. A new look at research on Great White Sharks in the Eastern North Pacific Ocean indicates the population is likely growing rather than endangered. A Great White Shark is pictured in the Eastern North Pacific in this undated handout photograph courtesy of Kevin Weng, University of Hawaii.

Sometimes; all sharks are predators after all. Most shark species (about 80 percent) have never been known to attack humans. There are four shark species that have always been considered dangerous to humans: great white shark, tiger shark, bull shark and oceanic whitetip shark.17 other species of sharks have also attacked humans. They are considered less dangerous, but can be aggressive if threatened or disturbed.here are four shark species that have always been considered dangerous to humans: great white shark, tiger shark, bull shark and oceanic whitetip shark. 17 other species of sharks have also attacked humans.

Great White Shark's Endangered Species Listing Proposed In California. SAN FRANCISCO, Feb 6 (Reuters) - The California Fish and Game Commission voted on Wednesday to recommend protection of the great white shark, the world's largest predatory fish, in waters along the Pacific Coast, under the state's endangered species law.

There are about 40 species of sharks found in the Hawaiian waters ranging from 8 inches to over 50 feet long. The most common sharks seen around Hawaii are Blacktip Sharks, Reef Blacktip Sharks, Reef Whitetip Sharks, Tiger Sharks, Sandbar Sharks, Galapagos Sharks, Scalloped Hammerhead Sharks, and Gray Reef Sharks.here are about 40 species of sharks found in the Hawaiian waters ranging from 8 inches to over 50 feet long. The most common sharks seen around Hawaii are Blacktip Sharks, Reef Blacktip Sharks, Reef Whitetip Sharks, Tiger Sharks, Sandbar Sharks, Galapagos Sharks, Scalloped Hammerhead Sharks, and Gray Reef Sharks.

Although the skipjack tuna itself is considered a fully sustainable commercial fish, they catching methods used for fishing are the topic of debate. Tuna nets frequently catch other species of fish and even some endangered animals such as turtles, sharks, and dolphins.lthough the skipjack tuna itself is considered a fully sustainable commercial fish, they catching methods used for fishing are the topic of debate. Tuna nets frequently catch other species of fish and even some endangered animals such as turtles, sharks, and dolphins.

This information will help you identify some of the common species of sharks. There are 440 different species of sharks in the world today classified into eight different orders described below with some examples of known sharks species for each group. Some of the most popular species of sharks are: One of the most unusual types of sharks our there are know as angel sharks. Many people mistake them for some other types of sea creature. It isnât uncommon for them to be thought of as large stingrays. But the simplest way to tell them apart is by looking at the location of the fins.

Squalene is shark liver oil that had been used as one of the most common moisturizers in cosmetics before sourcing began endangering the species and a plant based version became viable for products.Squalane is derived by hydrogenation of squalene.It is naturally present in the skin lipid barrier of plants, animals and humans, preventing moisture loss while restoring skinâs suppleness and flexibility.qualene is shark liver oil that had been used as one of the most common moisturizers in cosmetics before sourcing began endangering the species and a plant based version became viable for products.

Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes (cartilaginous fishes) Order: Selachii (sharks) Family: There are a number of different families of sharks, each with several genera, each of which has several species. For example: Family Carcharidae (sand sharks); Isuridae (mackerel sharks); Cetorhinidae (basking sharks); Alopiidae (thresher sharks); and others. Since there are so many famlies, genera and species, here is the info for a couple of the best known ones: Family Isuridae, Genus Carcharodon, species carcharias (Great White Shark) Family Carcharinidae, Genus Galeocerdo, species cuvier (Tiger Shark) Family Sphyrnidae, Genus Sphyrna, species zygaena (Hammerhead Shark)

Why are Sharks Endangered. Always assumed to be dangerous man-eaters, not many really care whether sharks exist or near extinction. However, this myth about sharks ought to be dispelled, and the reality of their waning numbers has to be brought to light. Sharks are endangered and a lot of factors are contributing to this process.

There are a wide variety of shark teeth, just as there are a wide variety of sharks. These teeth can be divided into two general categories. Many shark species, such as the goblin shark and sand tiger, have very long, thin teeth.This structure is well suited for catching small fish. The shark kills the fish immediately, by piercing it with a single bite. Then it swallows the fish whole.Sharks that go after larger prey need a different strategy and a different sort of tooth. They tear into their prey several times, biting off large pieces of flesh. Sharks in this group, which includes the infamous great white shark, have wide serrated teeth.any shark species, such as the goblin shark and sand tiger, have very long, thin teeth. This structure is well suited for catching small fish. The shark kills the fish immediately, by piercing it with a single bite. Then it swallows the fish whole.

They are hungry. Sometimes they can't get their food so they go and eat other sharks. 3 people found this useful. Edit. Share to: 1  Endangered Animal Species in Michigan An endangered species is one that is facing a high risk of extinction.his is not an animal unnatural characteristics: around 140 different species show cannibalistic tendencies under various conditions. Cannibalism is most common among lower vertebrates and invertebrates often due to a predatory animal mistaking one of its own kind for prey.

The Ganges shark (Glyphis gangeticus) is a critically endangered species of requiem shark found in the Ganges River and the Brahmaputra River of India.he Ganges shark, as its name suggests, is largely restricted to the rivers of eastern and northeastern India, particularly the Hooghly River of West Bengal, and the Ganges, Brahmaputra, and Mahanadi in Bihar, Assam, and Odisha, respectively. It is typically found in the middle to lower reaches of a river.

Hammerhead sharks are commonly seen in larger groups during the summer months when the hammerhead sharks are migrating together in search of cooler waters. The great hammerhead shark is the largest species of hammerhead shark and one of the few species of hammerhead shark that is potentially dangerous to humans.This is due to the sheer size of the giant hammerhead shark and also because the giant hammerhead is known to have an aggressive temperament.ammerhead sharks are commonly seen in larger groups during the summer months when the hammerhead sharks are migrating together in search of cooler waters. The great hammerhead shark is the largest species of hammerhead shark and one of the few species of hammerhead shark that is potentially dangerous to humans.

Great White Sharks are NOT endangered: Study shows the number of predators is ten times higher than previously thought. In 2011 an alarming study by Standford University suggested Great White Sharks were becoming an endangered species.

THREATENED SHARKS. Predators, but also prey. According to IUCN analysts, among the approximately 470 species of sharks, 2.4 percent are Critically Endangered, 3.2 percent are Endangered, 10.3 percent are Vulnerable, and 14.4 percent are Near Threatened.

And the lead author of the study says the 2011 study underestimated the number of Great White Sharks in the oceans - and it should not be regarded as an endangered species. A new look at research on Great White Sharks in the Eastern North Pacific Ocean indicates the population is likely growing rather than endangered.

Shark is definitely edible. You should know what kind of shark you have before deciding to cook it up and serve it to people. There are over 350 species of sharks and shark meat can be very salty (just depends on where the shark lives); however, many species are edible.Shark meat is delicious when properly prepared.ou should know what kind of shark you have before deciding to cook it up and serve it to people. There are over 350 species of sharks and shark meat can be very salty (just depends on where the shark lives); however, many species are edible. Shark meat is delicious when properly prepared.

While it is a truth that some shark species are animals that present a sort of danger to people, it is also true that humans have endangered the preservation of many shark species, despite all the physical and physiological adaptations they have achieved through evolution to survive in their natural environment.

These young sharks may take several months to hatch. In certain species of sharks, the eggs stay inside the female shark for a period of time before they are laid, this allows the sharks to develop fully and spend less time in the immobile egg cases before they hatch. Types Of Sharks That Lay Eggs. Just a few species of sharks that lay eggs include: Bamboo sharks or carpet sharks. Swell sharks. Cat sharks. Horn (bullhead) sharks.

Hammerhead Shark. There are eight different species of Hammerhead shark. All the species have the remarkable projections on both sides of the head, which probably is they reason why these sharks can detect electronic signals of no more than half a billionth of a volt.The head is probably used during electrolocation.ammerhead Shark. There are eight different species of Hammerhead shark. All the species have the remarkable projections on both sides of the head, which probably is they reason why these sharks can detect electronic signals of no more than half a billionth of a volt. The head is probably used during electrolocation.

Reuters. Great white sharks will now be protected under Californiaâs Endangered Species Act starting on Friday. The state Fish and Game Commission approved the designation in February, forbidding the hunting, pursuing, catching, capturing or killing of the animal. California will now allocate funds to a wide study populations of the great white shark -- also known as Carcharodon carcharias -- expected to be released next year. The species has long been an object of fascination among humans, many of whom fear the beast for its size and reputation as a man-eater.

Shark diet also adapts to survive. Some shark species may prefer certain types of prey, but when they are scarce, they adjust their eating habits to whatever is available. Sharks arenât picky with their food sources. Some sharks have been known to eat items including coal, oil, trash, and clothing that finds its way into the water. Sharks classification split into two groups according to their diet: CARNIVOROUS SHARKS. A carnivorous shark diet usually includes fish, mollusks, and crustaceans. Large species also consume marine mammals such as seals, dolphins, sea lions, and porpoises, as well as large fish species such as tuna, mackerel, and even smaller shark species. Some even extend their consumption to seabirds.

In the 184 years that shark attacks have been tracked in. There are about 40 species of sharks found in the Hawaiian waters ranging from 8 inches to over 50 feet long.The most common sharks seen around Hawaii are Blacktip Sharks, Reef Blacktip Sharks, Reef Whitetip Sharks, Tiger Sharks, Sandbar Sharks, Galapagos Sharks, Scalloped Hammerhead Sharks, and Gray Reef Sharks.n the 184 years that shark attacks have been tracked in. There are about 40 species of sharks found in the Hawaiian waters ranging from 8 inches to over 50 feet long.

Although both animals live and thrive in the ocean and there is a species of shark that is called the whale shark the whale species is very different from sharks. In fact sharks are actually considered a type of fish while whales, dolphins and porpoises are marine mammals.nother major difference between whales and sharks is how the two species give birth. Whales give birth the same way that humans and other mammals do (through a pregnancy period or gestation term) while sharks and fish lay eggs.

In certain species of sharks, the eggs stay inside the female shark for a period of time before they are laid, this allows the sharks to develop fully and spend less time in the immobile egg cases before they hatch. Types Of Sharks That Lay Eggs. Just a few species of sharks that lay eggs include: Bamboo sharks or carpet sharks; Swell sharks; Cat sharks

The fish wind up in conservation limbo, since insufficient data is available. Such sharks include the thresher, Java, kitefin, salmon, broadnose sevengill, bigeye sand tiger, narrowmouth catshark, great hammerhead, Argentine angel shark and megamouth, which was only first discovered in 1976.re sharks dangerous or endangered? The answer is both. On the danger side, most sharks are apex predators. This means they exist at the top of the oceanic food chain and possess few, or no, natural enemies.

Because their predators eat them and human beings kill them for money. So this is the reason why the dugongs are endangered. Dugongs are endangered because sharks, crocodiles and killer whales hunt them for food.Also entanglement in fishing wire and nets, coastal development and pollution is a major problem. Aboriginals are playing a large part in culling and hunting dugongs for meat, because it's their hunting right.ecause their predators eat them and human beings kill them for money. So this is the reason why the dugongs are endangered. Dugongs are endangered because sharks, crocodiles and killer whales hunt them for food.

Shark is the largest sea mammal in the world. There are a lots of shark species which are present in different oceans of the world. Among these shark species Whale Shark is the biggest shark in the world.Here is the list of names of largest sharks in the world with their habitat info.he Whale Shark is the largest and the heaviest living shark because its weight is more than 21 tons and its length is more than 12 meter. It is found in open oceans and warm waters. It feeds on plankton but some times it also uses other small fishes as food.

Named because of their long, mobile tail, thresher sharks are one of over 30 species of shark found in British waters, all of which have suffered massive decline and now rank amongst the most endangered animals on the planet.

The scientific name for the hammerhead shark family is Sphyrnidae, with most being in the genus Sphyrna. The Great Hammerhead Shark is Sphyrna mokarran. (endangered species) T â¦ he scalloped hammerhead is Sphyrna lewini.

The scientists behind the report, published in the journal Marine Policy, added that the number of sharks killed could be anywhere between 63 million and 273 million, staggering figures that experts say could drive many shark species to endangerment or even extinction.

Whale sharks are the target of commercial fisheries; this has put them on the list of endangered species. Although the worldwide population is unknown, the reduction in sightings has placed them in a vulnerable situation. According to information of 2016, there are about 7,100 whale sharks in the ocean. Links to other pages in this site.

An Oceanic whitetip shark swimming with a small school of pilot fish. The Oceanic whitetip shark (Carcharhinus longimanus), is a large species of requiem shark, in the genus Carcharhinus. The Oceanic whitetip reef shark reaches a maximum length of 4 metres, and can weigh as much as 170 kg (370 pounds).This species of shark can be distinguished among other species by its large, rounded first dorsal fin, and its very long, wide, paddle-like pectoral fins.he Oceanic whitetip reef shark reaches a maximum length of 4 metres, and can weigh as much as 170 kg (370 pounds). This species of shark can be distinguished among other species by its large, rounded first dorsal fin, and its very long, wide, paddle-like pectoral fins.

Sawfish are shark-like rays characterized by long, tooth-studded snouts. Individuals range in size from 2 to 20 feet and can weigh more than 1,000 pounds. Like most sharks and rays, sawfish are exceptionally vulnerable to overexploitation due to their slow growth, late maturity, and small number of young. All seven species worldwide are classified by the International Union for Conservation of Nature (IUCN) as Critically Endangered.

Tiger shark Facts. Tiger shark is one of the largest species of sharks on the planet. This animal can be found in the warm, tropical and subtropical waters all over the world. Largest population of tiger sharks lives in Melanesia, Micronesia and Polynesia.Tiger sharks normally spends majority of their time in the deep water.iger sharks are the second most dangerous species of sharks for humans. Unlike great white sharks (which are the most dangerous), tiger sharks will often eat victim after attack. Luckily, encounters between tiger sharks and humans are rare.

Tropical sharks include the huge filter-feeding whale shark, the great hammerhead shark, the nurse shark, the tiger shark, and the bull shark, which is found in both the ocean and in fresh water lakes in the tropics.Certain large species, such as the whale shark, range throughout the tropical region all over the world.ropical sharks include the huge filter-feeding whale shark, the great hammerhead shark, the nurse shark, the tiger shark, and the bull shark, which is found in both the ocean and in fresh water lakes in the tropics.

Sometimes; all sharks are predators after all. Most shark species (about 80 percent) have never been known to attack humans. There are four shark species that have always been considered dangerous to humans: great white shark, tiger shark, bull shark and oceanic whitetip shark. 17 other species of sharks have also attacked humans.

Biggest Sharks In The World. Shark is the largest sea mammal in the world. There are a lots of shark species which are present in different oceans of the world. Among these shark species Whale Shark is the biggest shark in the world. Here is the list of names of largest sharks in the world with their habitat info.

Shark teeth are the most common type of fossil for a number of reasons. First, shark teeth, like most teeth, are made of dentin, a hard calcified tissue that does not easily decompose. Dentin is harder and denser than bone.In a tooth, the Dentin is surrounded by a very hard enamel shell.Secondly, to maintain a sharp smile, shark teeth are designed to regularly fall out and be replaced.dditionally, shark teeth can look different between male and female sharks of the same species, from juveniles to adults of the same species, and finally they look different if they are in the upper jaw vs. lower jaw.

Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft) in length.hey have several sets of replaceable teeth. Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators âorganisms at the top of their underwater food chain. Many shark populations are threatened by human activities.

  Internationally, dugong are listed on Appendix I of the Conservation of International Trade in Endangered Species (CITES), and on Appendix II of the Convention on Migratory Species (the CMS). Australia is a signatory to both these conventions.ugongs are endangered because sharks, crocodiles â¦ and killer whales hunt them for food. Also entanglement in fishing wire and nets, coastal development and pollution is a major problem. Aboriginals are playing a large part in culling and hunting dugongs for meat, because it's their hunting right.

The most fearsome predator of sharks is Homo sapiens sapiens! But sharks have many other predators in the world oceans: - Other sharks, specially the tiger shark (Galeocer â¦ do cuvier).[Many shark species practice cannibalism.] - The killer whale (Orcinus orca). There are many types of small sharks that are no doubt part of the diet of other predatory animals in the ocean. 2  Also sharks have been observed eating other sharks. 3  The Sharks predators are Dolphins, other sharks and people! 4  But people are the worst.

There are many different species of sharks that range in size from the size of a person's hand to bigger than a bus. The biggest shark is the Whale shark, which can be up to 46 feet (14 m) long. The smallest shark is the Spined Pygmy shark, which, when fully-grown, is only 7-8 inches (18-20 cm) long. Most sharks are intermediate in size, about the same size as people, 5-7 feet (1.5-2.1 m) long. Half of the 350 shark species are under 39 inches (1 m) long.

This makes it the most widely dispersed shark species. there are species of shark that can go in rivers, such as bull shark and river shark. The bull shark is considered the third largest predatory shark after the great white and tiger shark and has been seen 2000 miles up river.hough depending on the climate they live in greatly depends on how they behave. the greenland shark one of the biggest sharks in the world, live up north, but it moves really slowly conserving energy.

Because their predators eat them and human beings kill them for money. So this is the reason why the dugongs are endangered. Dugongs are endangered because sharks, crocodiles â¦ and killer whales hunt them for food. Also entanglement in fishing wire and nets, coastal development and pollution is a major problem.Aboriginals are playing a large part in culling and hunting dugongs for meat, because it's their hunting right.ugongs are endangered because sharks, crocodiles â¦ and killer whales hunt them for food. Also entanglement in fishing wire and nets, coastal development and pollution is a major problem. Aboriginals are playing a large part in culling and hunting dugongs for meat, because it's their hunting right.

Images of Sharks' Teeth: View images of teeth from different species of shark. The Differences in Shark Teeth: Click on a type of shark and find out more about the appearance of its teeth. Shark Evolution and Fossils: Learn how shark fossils reveal how much the shark has evolved over millions of years.

1 Bull sharks are the most dangerous sharks in the world, according to many experts. 2  This is because they're an aggressive species of shark, and they tend to hunt in waters where people often swim: along tropical shorelines. 3  Bull sharks live throughout the world, in shallow, warm ocean waters. Facts about Bull Sharks: 2  Bull sharks are the most dangerous sharks in the world, according to many experts. 3  This is because they're an aggressive species of shark, and they tend to hunt in waters where people often swim: along tropical shorelines. 4  Bull sharks live throughout the world, in shallow, warm ocean waters.

Depending on the species, sharks can have different sizes. The  largest is the whale shark that can reach up to 41 feet in length.  The great white shark can be about 20 fee â¦ t long. Smaller sharks are  the bull and tiger sharks that can have an average length of 11  feet.1  6 Amazing Fish Facts Fish are amazing creatures.he  largest is the whale shark that can reach up to 41 feet in length.  The great white shark can be about 20 fee â¦ t long. Smaller sharks are  the bull and tiger sharks that can have an average length of 11  feet. 1  6 Amazing Fish Facts Fish are amazing creatures.

Skates and Rays. Cartilaginous fish (scientific name Chondrichthyes) have a skeleton made from cartilage instead of bone. Cartilage is tough and flexible and provides enough structural support to allow these fish to grow to very large sizes. Cartilaginous fish include sharks, rays, skates and chimaeras.There are approximately 600 different species of rays and skates and about 500 shark species. Rays and skates live in oceans throughout the world. Most rays and skates live on the bottom of the ocean while some live in open water.artilage is tough and flexible and provides enough structural support to allow these fish to grow to very large sizes. Cartilaginous fish include sharks, rays, skates and chimaeras. There are approximately 600 different species of rays and skates and about 500 shark species.

Shark is the largest sea mammal in the world. There are a lots of shark species which are present in different oceans of the world. Among these shark species Whale Shark is the biggest shark in the world. Here is the list of names of largest sharks in the world with their habitat info.

Great White Sharks are now listed as 'vulnerable' on the IUCN Red List rather than 'endangered'. Burgess credits the growth in sharks to 40 years of U.S. federal protections for marine mammals that sharks feed on, especially sea lions and seals.

Zebra bullhead sharks (Heterodontus zebra) are not considered an endangered species. The IUCN's Red List of Threatened Species, which is an internationally recognized databaseâ¦ of plant and animal species' conservation status and threat level, places them in the Least Concern category.

Hexanchiform sharks have a single dorsal fin, either six or seven gill slits (versus the 5 found in all other existing sharks), and no nictitating membranes (protective third eyelids) . The frilled shark, Chlamydoselachus anguineus, is currently one of only two known species of frilled sharks.The southern African frill shark, C. africana, was recently discovered (2009) off southern Angola, Namibia and South Africa.rilled sharks, Chlamydoselachus anguineus (Garman, 1884), aka frill sharks, frill-gilled sharks, Greenland sharks, scaffold sharks, and silk sharks are members of the most ancient frill and cow sharks order, Hexanchiformes.

The skin of a shark is made of tiny denticles, which are made of the same enamel that teeth have, meaning they too can fossilize. Some more primitive sharks have spines in their fins that will fossilize. Finally, shark feces, or coprolites, are sometimes found preserved.dditionally, shark teeth can look different between male and female sharks of the same species, from juveniles to adults of the same species, and finally they look different if they are in the upper jaw vs. lower jaw.

White sharks, also known as great white sharks, are the #1 shark species that cause unprovoked shark attacks on humans. These sharks are the species made infamous by the movie Jaws. According to the International Shark Attack File, white sharks were responsible for 314 unprovoked shark attacks from 1580-2015. Of these, 80 were fatal.

Different species of sharks are found all around the world but mainly in warmer water. Australia is common for great white sharks! in all ocean. Most sharks are most popular around the equator.Sharks tend to grow larger, and therefore more successful in hotter places.ifferent species of sharks are found all around the world but mainly in warmer water. Australia is common for great white sharks! in all ocean. Most sharks are most popular around the equator.

Skates and Rays. Cartilaginous fish (scientific name Chondrichthyes) have a skeleton made from cartilage instead of bone. Cartilage is tough and flexible and provides enough structural support to allow these fish to grow to very large sizes. Cartilaginous fish include sharks, rays, skates and chimaeras.There are approximately 600 different species of rays and skates and about 500 shark species. Rays and skates live in oceans throughout the world. Most rays and skates live on the bottom of the ocean while some live in open water.Some rays also live in freshwater. The manta ray (Manta birostris) feeds on plankton and small fish is the largest ray reaching up to 9 metres in width and can weigh several tonnes.artilage is tough and flexible and provides enough structural support to allow these fish to grow to very large sizes. Cartilaginous fish include sharks, rays, skates and chimaeras. There are approximately 600 different species of rays and skates and about 500 shark species.

Tiger sharks are some of the largest predators in the ocean and have few species feed on them. Some juvenile tiger sharks, however, fall prey to other sharks. Female tiger sharks gives birth in a nursery, which provides protection during the birthing process and to pups in the absence of parents.iger sharks are some of the largest predators in the ocean and have few species feed on them. Some juvenile tiger sharks, however, fall prey to other sharks. Female tiger sharks gives birth in a nursery, which provides protection during the birthing process and to pups in the absence of parents.

(How Long Do Sharks Live). Many sharks can live for about 20 to 30 years, with some species are known to live a fairly longer life. The lifespans of large sharks are greater than that of the smaller sharks.Great white shark reaches its maturity at the age of 15 and it has the lifespan of 25 to 30 years.How Long Do Sharks Live). Many sharks can live for about 20 to 30 years, with some species are known to live a fairly longer life. The lifespans of large sharks are greater than that of the smaller sharks.

The Bull shark (Carcharhinus leucas), or Zambezi shark, is a species of shark of the genus Carcharhinus. The shark grows to a maximum length of 11.5 feet (3.5 metres), but is usually 7.3-7.8 feet (2.2-2.3 metres) long.It is found in tropical and subtropical coastal waters worldwide, as well as river systems and freshwater lakes.he Bull shark (Carcharhinus leucas), or Zambezi shark, is a species of shark of the genus Carcharhinus. The shark grows to a maximum length of 11.5 feet (3.5 metres), but is usually 7.3-7.8 feet (2.2-2.3 metres) long.

There are about 40 species of sharks found in the Hawaiian waters ranging from 8 inches to over 50 feet long. The most common sharks seen around Hawaii are Blacktip Sharks, Reef Blacktip Sharks, Reef Whitetip Sharks, Tiger Sharks, Sandbar Sharks, Galapagos Sharks, Scalloped Hammerhead Sharks, and Gray Reef Sharks.

Answer: Shark size varies according to the species. The largest shark is the whale shark which is up to 41 feet long. The great white shark is up to 20 feet long. Bull sharks can reach up to 11 feet. Tiger sharks can measure between 10 to 14 feet.he largest shark is the whale shark which is up to 41 feet long. The great white shark is up to 20 feet long. Bull sharks can reach up to 11 feet.

Where do sharks live? Sharks live in oceans all over the world. Most shark species prefer warmer climates and are often found in the sea around Australia, Florida and Mexico. However, other types of sharks like cold water and live in the icy waters of Alaska and Iceland. How do sharks breathe under water? Sharks are a type of fish which means they can breathe easily under water. They breathe through gills that are located on either side of their bodies. Why do sharks have so many teeth?

The largest weight of a whale shark registered is 47,000 pounds or 21.5 tonnes. From there, weights are smaller and change according with the species. Male bull sharks weight around 200 pounds while female bull sharks can reach up to 290 pounds. The largest tiger shark captured weight was 1,450 pounds. The great white shark weight ranges from 1,500 lb. to 2,500 lb. Links to other pages in this site. Why Do The Great White Sharks Attack Humans? Where Does A Whale Shark Live? What Is A Whale Shark? How Much Do Sharks Weight? How Do Sharks Know When Something Is Food Or Not?

Many shark species, such as the goblin shark and sand tiger, have very long, thin teeth. This structure is well suited for catching small fish. The shark kills the fish immediately, by piercing it with a single bite. Then it swallows the fish whole. Sharks that go after larger prey need a different strategy and a different sort of tooth. They tear into their prey several times, biting off large pieces of flesh. Sharks in this group, which includes the infamous great white shark, have wide serrated teeth.

Shark teeth are also useful in conducting research about the structure of teeth, shark migration patterns, and identifying shark species. The most ancient types of sharks date back to 450 million years ago, during the Late Ordovician period, and are mostly known by their fossilised teeth.However, the most commonly found fossil shark teeth are from the Cenozoic era (the last 66 million years).he most ancient types of sharks date back to 450 million years ago, during the Late Ordovician period, and are mostly known by their fossilised teeth. However, the most commonly found fossil shark teeth are from the Cenozoic era (the last 66 million years).

Not many sharks ever go in frigid water. p â¦ lus the huge ship sinking and all the commotion would scare just about anything off. Yes, there are some sharks in the North Atlantic Drift Area (Where the Titanic sank). But their more prevalent during the summer months that far North. The sharks that are most populated there are Blue sharks, Great White Sharks, some bull sharks, nurse sharks and many other different species.

Size: The spined pygmy shark, a deep-sea shark, is one of the smallest at only about 7-8 inches, while the whale shark is the largest shark, and fish, at about 50 feet in length. Lifespan: Although lifespan varies by shark species, most sharks are long-lived and generally tend to live for 20-30 years. Species like the spiny dogfish and the whale shark are believed to live for over 100 years!

Genus: Mako sharks. Mako shark is better known as grey-blue shark. However, it still has a few other names: bonito shark, mackerel shark, black winged shark, blue pointer shark. It should also be noted that during the last century experts have described another kind of mako sharks: the Longfin mako shark.enus: Mako sharks. Mako shark is better known as grey-blue shark. However, it still has a few other names: bonito shark, mackerel shark, black winged shark, blue pointer shark. It should also be noted that during the last century experts have described another kind of mako sharks: the Longfin mako shark.

Order: Squaliform. Dogfish sharks are the second largest of shark orders with 119 species. Dogfish come in all shapes, sizes, and colors and they live in almost every ocean habitat and depth.This group of sharks are an exercise in extremes.Dogfish are represented by what is thought to be the smallest shark species (Dwarf lantern shark, which only grows to about 6 inches) and some of the largest (Greenland and Sleeper sharks).ogfish come in all shapes, sizes, and colors and they live in almost every ocean habitat and depth. This group of sharks are an exercise in extremes.

In general, sharks do not eat humans. Despite their scary reputation, sharks rarely ever attack humans and would much rather feed on fish and marine mammals. Only about a dozen of the more than 300 species of sharks have been involved in attacks on humans. Sharks evolved millions of years before humans existed and therefore humans are not part of their normal diets. Sharks are opportunistic feeders, but most sharks primarily feed on smaller fish and invertebrates. Some of the larger shark species prey on seals, sea lions, and other marine mammals.

There are many species of sharks, over 400 in fact(and more are being found). Out of those 400+ most shark species are able to both buccal pump(pump water through their gills) and ram ventilate(swim to force water through their gills). There are some sharks that are only able to do one or the other though. Species that are primary low activity may not use ram ventilation much if at all, these species include the nurse shark and other similar sharks.

Megalodon's Closest Living Relative is the Great White Shark. A Great White Shark having its lunch (Wikimedia Commons). Technically, Megalodon is known as Carcharodon megalodon --meaning it's a species (Megalodon) of a larger shark genus (Carcharodon).Also technically, the modern Great White Shark is known as Carcharodon carcharias, meaning it belongs to the same genus as Megalodon.egalodon's Closest Living Relative is the Great White Shark. A Great White Shark having its lunch (Wikimedia Commons). Technically, Megalodon is known as Carcharodon megalodon --meaning it's a species (Megalodon) of a larger shark genus (Carcharodon).

Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.ell-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators âorganisms at the top of their underwater food chain. Many shark populations are threatened by human activities.

Learn some of the imperative hammerhead shark facts for kids including hammerhead sharks diet, habitat, and species. The hammerhead sharks are the group of sharks that belong to the Sphyrnidae and are literally known for their flat-stretched heads.These hammerhead sharks are being put in the genus Sphyrna.Hammerhead sharks inhabit all along the tepid waters and other coastlines and continental shelves.he hammerhead sharks are the group of sharks that belong to the Sphyrnidae and are literally known for their flat-stretched heads. These hammerhead sharks are being put in the genus Sphyrna.

Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.hey have several sets of replaceable teeth. Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators âorganisms at the top of their underwater food chain. Many shark populations are threatened by human activities.

The life-span of tiger sharks in the wild is considered to be 27 years in average, even though some may live up to 50 years of age. As with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years.Some experts presume that the lifespan of the Great White Sharks is approximately 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years.ately, GPS systems have brought a new way to track migration and how long do sharks live, providing more accurate information about them. Shark lifespan vary by kind and it is very different for each of them. While many types live 20 to 30 years in the wild, there are some types that live much longer than others.

Although both animals live and thrive in the ocean and there is a species of shark that is called the whale shark the whale species is very different from sharks. In fact sharks are actually considered a type of fish while whales, dolphins and porpoises are marine mammals.

Order: Chlamydoselachiformes. Frilled sharks, a long, skinny shark that looks like an eel, are among the oldest living species of sharks. Fossil evidence dates frilled sharks to 95 million years ago. Some paleontologists suggest it is a living cladodont shark, a shark that existed as long ago as 380 million years.ossil evidence dates frilled sharks to 95 million years ago. Some paleontologists suggest it is a living cladodont shark, a shark that existed as long ago as 380 million years.

it depends where you are in Hawaii there is some whale shark, bull  shark, tiger shark, and even sometimes on a rare occaican great  whit sharks sand sharks a lot and hammer â¦ heads     According to researchers there are 40 known species of  sharks in Hawaiian waters, but bull sharks are not one!here do black tip sharks live? Blacktip sharks are found in tropical and subtropical coastal, shelf, and island waters in the Atlantic, where they migrate seasonally between Brazil and Nova Scotia; the Gulf â¦ of Mexico and the Caribbean Sea, throughout the Mediterranean, and along the central West coast of Africa.

The Goblin shark (Mitsukurina owstoni) is a rare, poorly-known species of deep-sea shark. Sometimes called a  living fossil , it is the only living species in the family Mitsukurinidae.The Goblin shark can be easily identified by its long, flattened snout.Males can reach up to lengths of 12.6 feet (3.8 metres), and females can reach up to lengths of 12.2 feet (3.7 metres).he Goblin shark (Mitsukurina owstoni) is a rare, poorly-known species of deep-sea shark. Sometimes called a  living fossil , it is the only living species in the family Mitsukurinidae.

The Winghead Shark grows to 6.2 ft (1.9 m) in length at maturity. These nine species of Hammerhead Sharks show that even in a very narrowly defined species of shark there is a wealth of biological diversity. Hammerhead Sharks range in size, distribution, and even have vastly different types of Hammerheads.

Learning About Sharks Through Fossils: Consider some facts on why sharks have different types of teeth. General Facts on Shark Teeth: Read about the teeth of different types of sharks on this page from Cornell University. A Closer Look at Sharks and Their Teeth (PDF): Learn about the teeth of mako sharks and great white sharks along with others.

Yes indeed! Some sharks do lay eggs but not all of them exhibit the same behavior. Almost 40 percent of shark species lay eggs while the remaining 60 percent bear live young. Different species of sharks display different modes of reproduction. Therefore, some sharks lay eggs and some do not.

The discovery explains why thresher sharks are often caught by their tails by baited long-line fishing gear. Three species of thresher shark swim the oceans: the common thresher (Alopias vulpinus), bigeye thresher (A. superciliosus) and pelagic thresher (A. pelagicus) .Each species has a similar general appearance, including an elongated tail which can extend up to half the total shark's length.hree species of thresher shark swim the oceans: the common thresher (Alopias vulpinus), bigeye thresher (A. superciliosus) and pelagic thresher (A. pelagicus) . Each species has a similar general appearance, including an elongated tail which can extend up to half the total shark's length.

Which shark is larger megalodon shark or whale shark? megalodon shark was much bigger than whale shark cause a megalodon shark is almost 100 feet while an whale shark is just 62-75 feet.But the megalodon has been extinct for abo â¦ ut 1.5 million years, leaving the whale shark the biggest shark alive.hich shark is larger megalodon shark or whale shark? megalodon shark was much bigger than whale shark cause a megalodon shark is almost 100 feet while an whale shark is just 62-75 feet.

Killer whales sometimes develop a taste for shark livers and will kill white sharks for it, even large whites. well it depends sharks can eat sharks but i dont know what type. but sharks are vicous creatures and they usally win. The whale shark and the basking shark certainly aren't vicious creatures. Only about 5, out of 350, species are known to attack man and even then they don't do it very often.

Skipjack tuna can have moderately high levels of mercury. A lower mercury fish like salmon is a healthier option than skipjack tuna for frequent fish eaters. Some species of tuna -- which provides the popular canned and fresh fish -- can grow more than six feet long and weigh hundreds of pounds.Skipjack tuna is available for purchase in canned form.lthough the skipjack tuna itself is considered a fully sustainable commercial fish, they catching methods used for fishing are the topic of debate. Tuna nets frequently catch other species of fish and even some endangered animals such as turtles, sharks, and dolphins.

Yes, there are some sharks in the North Atlantic Drift Area (Where the Titanic sank). But their more prevalent during the summer months that far North. The sharks that are most populated there are Blue sharks, Great White Sharks, some bull sharks, nurse sharks and many other different species.

8.Carcharinformes (Ground sharks : these sharks have a long snout and a nictitating membrane that protects their eyes. They include well-known species like the Blue Shark, Tiger Shark, Bull Shark, Oceanic Whitetip Shark, Blacktail Reef Shark, Houndshark and Hammerhead Shark, amongst others)

Sharks have five different kinds of fins. 1  Paired pectoral fins lift the shark as it swims. 2  Paired pelvic fins stabilize the shark. 3  One or two dorsal fins also stabilize the shark. In some species, dorsal fins have spines. 4  Not all sharks have an anal fin, but it. provides stability for the sharks that do have one.

Sand tiger shark. Not to be confused with sand shark, tiger shark, or nurse shark. The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide.

Hawaii is also home to about 40 species of sharks, including the harmless whale shark to the not so harmless tiger shark. Occasionally great white sharks have been seen as well. The most common shark species in Hawaii are the gray reef, white-rip and black-tip reef sharks.

The Great White Shark averages an impressive 6.6 to 7 metres (21.6 to 23 feet) and the grizzly Ragged Tooth Shark comes in at about 3.6 metres, or just under 12 feet. With these mammoth hunters gliding through the waters, it is no wonder that sharks have earned themselves a fearsome reputation. Different shark species tend to prefer different waters (in terms of the prey found therein and the temperatures of the ocean) but, generally, sharks are found all over the world.

With over 500 species of sharks, there are many different shark sizes and shapes. The largest shark (and also largest fish) is the gentle whale shark (Rhincodon typus), which can reach lengths of 39 feet (12 meters). The smallest is the dwarf lantern shark (Etmopterus perryi) clocking in at only 8 inches long. This tiny shark is found in deep waters off the coasts of Columbia and Venezuela.

Best Answer: If you are asking which is more dangerous, both sharks and whales has their species that can be potentially dangerous. Even though Great white sharks is the most intimidating of all sharks, they're not the most aggressive sharks.Tiger sharks are way more aggressive than the Great white sharks. shark is more dangerous than a whale because whales eat krill. Sharks eat meat but that doesn't mean they would just swim up and eat you. A shark would only hurt a person if you were in its territory,you were surfing and looked like a seal from below, or if it was desperately hungry.

CARNIVORES. Almost all sharks are carnivores or meat eaters. They live on a diet of fish and sea mammals (like dolphins and seals) and even such prey as turtles and seagulls.Sharks even eat other sharks.For example, a tiger shark might eat a bull shark, a bull shark might eat a blacktip shark and a blacktip shark might eat a dogfish shark! The teeth of the carnivores are sharp and pointy.hey live on a diet of fish and sea mammals (like dolphins and seals) and even such prey as turtles and seagulls. Sharks even eat other sharks. For example, a tiger shark might eat a bull shark, a bull shark might eat a blacktip shark and a blacktip shark might eat a dogfish shark!

Bull Shark Distribution. The Bull Shark is able to thrive both in saltwater and freshwater which is very interesting. It is one of the few species of sharks that has this adaptability. It tends to live in the shallow waters such as in rivers and along the coastal locations.here are several types of food sources for the Bull Shark. They include bony fish, birds, dolphins, small sharks including others of the same species, terrestrial mammals, echinoderms, and crustaceans. They often bump into their prey and then bite it while they are still surprised from that initial bump.

Tiger shark is known as voracious carnivore (meat-eater). Regular prey of tiger shark includes dolphins, fish, turtles, dugongs, sea birds, stingrays, sea snakes â¦. Tiger sharks are definitely not picky eaters.iger sharks are the second most dangerous species of sharks for humans. Unlike great white sharks (which are the most dangerous), tiger sharks will often eat victim after attack. Luckily, encounters between tiger sharks and humans are rare.

Bull Shark Description. The size of a Bull Shark is very large with them being about 7.5 feet long to 11 feet long and weighing around 200 to 300 pounds. When you look at other species of sharks that are the same size you will see that this one is wider.here are several types of food sources for the Bull Shark. They include bony fish, birds, dolphins, small sharks including others of the same species, terrestrial mammals, echinoderms, and crustaceans. They often bump into their prey and then bite it while they are still surprised from that initial bump.

How Long Do Great White Sharks Live. Many sharks can live for about 20 to 30 years, with some species are known to live a fairly longer life. The lifespans of large sharks are greater than that of the smaller sharks. Great white shark reaches its maturity at the age of 15 and it has the lifespan of 25 to 30 years. The average lifespan of tiger sharks is 50 years in the wild. (How Long Do Sharks Live) The average lifespan of nurse sharks is 25 years in captivity.

This information will help you identify some of the common species of sharks. There are 440 different species of sharks in the world today classified into eight different orders described below with some examples of known sharks species for each group.

Many scientists agree that since bull sharks often dwell in shallow waters, they may be more dangerous to humans than any other species of shark, and that they, tiger sharks and great white sharks are the three shark species most likely to attack humans.onfidence votes 28. The Bull Shark is found in tropical and subtropical seas around the world, and prefers warm waters. It also lives very close inshore, and often enters fresh water for long periods.

List of sharks. Sharks belong to the superorder Selachimorpha in the subclass Elasmobranchii, in the class Chondrichthyes. The Elasmobranchii also include rays and skates; the Chondrichthyes also include Chimaeras. The first sharks appeared in the oceans over 440 million years ago. Listed below are extant species of shark. Sharks are spread across 512 described species in eight orders. The families and genera within the orders are listed in alphabetical order. Also included is a field guide to place sharks into the correct order.

Most species of sharks have five pairs of gill slits on each side of their head, but a few have six or seven pairs. The gills are crucial to a sharks breathing system. By opening its mouth, water is drawn into the shark. The open mouth gives the appearance of a smile in many sharks. When a shark closes its mouth, the water is forced over its gills and the tiny blood vessels in shark gills absorb oxygen from the water. To aid water flowing over its gills most sharks swim forward all the time, called ram ventilation, and is characteristic of more active open ocean sharks.

Killer whales feed on a large variety of marine animals. Thirty fish species, including salmon, herring, and shark species are hunted. Even the largest shark, the whale shark, falls prey to the orca. Five seal species, seven seabird species, sea lions, penguins, squid, sea otters, and sea turtles are common prey. Larger aquatic mammals, like dugongs are also hunted. Fascinatingly, 24 different species of cetacean are hunted by orcas.

The great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large lamniform shark which can be found in the coastal surface waters of all the major oceans.he great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large lamniform shark which can be found in the coastal surface waters of all the major oceans.

Therefore, they are under enormous threat of extinction if humans are left to kill them indiscriminately. The Great White Shark and the Grey Nurse Shark are both examples of such species. The hunting or killing of sharks has a number of negative impacts, both direct and indirect. These include: 'sharks are predators. By killing off vast numbers of these marine hunters, the natural order of various other species, which are the natural prey of sharks, is disturbed. It affects the way that they interact with one another and affect the well-being and balance of other species.

SHARK LIVER OIL Overview Information. Shark liver oil is used to make medicine. It is taken from the livers of three species of shark: the deep sea shark (Centrophorus squamosus), the dogfish (Sqaulus acanthias), and the basking shark (Cetorhinus maximus). The liver makes up about 25% of the total shark body weight of these sharks. Shark liver oil is used along with usual cancer drugs to treat leukemia and other cancers; to prevent radiation illness from cancer X-ray therapy; to prevent the common cold, flu, and swine flu; and to boost the bodyâs immune system.

The world's biggest school of sharks was observed in Galapagos, it was a single school of 1100 Hammerhead Sharks. The world's smallest shark is a small type of the Cat Shark. The shark is just 6 inches, when it is fully grown. The Thresher Shark can jump 20 feet out of the water.he world's most dangerous shark is the Bull Shark. The world's biggest shark is the Whale Shark (a shark is a fish). The Whale Shark can be up to 53 feet long and weight more than 13 ton.

Regardless sharks are cold blooded, they live either in warm, temperate and cold waters. Some species live mainly in cold waters, while some others prefer warmer waters. SHARK MIGRATION. One thing is for sure; sharks migrate to find new sources of food and they can travel up to hundreds of miles to do that. Most species of sharks live in the oceans. However, some of them are known to dwell in bodies of freshwater, like the bull shark which travels up to 4,000 Km up the Amazon River. Sometimes, sharks reach freshwater bodies; this could be the result of the destruction of their habitat by human activities.

Goblin Shark. 3,579 pages on this wiki. The Goblin shark, (Mitsukurina owstoni), is a rare, poorly known species of deep-sea shark. Sometimes called a  living fossil , it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old.oblin Shark. 3,579 pages on this wiki. The Goblin shark, (Mitsukurina owstoni), is a rare, poorly known species of deep-sea shark. Sometimes called a  living fossil , it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old.

best answer sharks typically swim with the even liquid grace of a creature completely at home with its place in the universe large sharks generally cruise at a leisurely 1 5 miles 2 4 kilometres per hour because most species fare poorly in captivity the maximum swimming speed of a shark has seldom been measuredest answer sharks typically swim with the even liquid grace of a creature completely at home with its place in the universe large sharks generally cruise at a leisurely 1 5 miles 2 4 kilometres per hour because most species fare poorly in captivity the maximum swimming speed of a shark has seldom been measured

1 There are many types of small sharks that are no doubt part of the diet of other predatory animals in the ocean. 2  Also sharks have been observed eating other sharks. 3  The Sharks predators are Dolphins, other sharks and people! 4  But people are the worst. There are many types of small sharks that are no doubt part of the diet of other predatory animals in the ocean. 2  Also sharks have been observed eating other sharks. 3  The Sharks predators are Dolphins, other sharks and people! 4  But people are the worst.

Sharks are on the brink of extinction with studies reporting their numbers all over the world being lower than those of tigers. This news is anything but good, and unless we ourselves take some measures and find out why sharks are endangered and spread awareness, things could only get worse.

Sharks found in the Caribbean are the tiger shark, sand tiger shark, and the thresher shark!!ots of sharks can be found near Barbados. There have been alot of recorded attacks. I would suggest not venturing to far out at sea. here are a few types of sharks Great whit â¦ e shark Bull shark Tiger shark Carrabean reef shark Smooth hammerhead sharks and many more.

Currently there are approximately 400 described species of sharks, however new species are being described all the time. In addition, there are around 400 species of rays, a close relative of sharks. Like all living things that humans know about, they are classified by kingdom, phylum, class, order, family, and species. Sharks all belong to the same class, Chondrichthyes, but they are divided into 8 different orders.

Is the hammerhead shark a very dangerous shark? There are many types of hammerhead sharks. (About 7-10 I think..) Usually the Great Hammerhead is the most dangerous type.   _______________________________________________â¦______________________   No hammerhead sharks are not very dangerous.   There are in fact 9 known species of hammerhead shark, three of which have been known to be dangerous to humans.

Great White Sharks are NOT endangered: Study shows the number of predators is ten times higher than previously thought. 1  A team of scientists led by the University of Florida studied shark numbers.  They found that measures to improve the population had been successful.

In some shark species the male shark may bite the female shark. This is the way that the male shark expresses that he is interested in mating with the female shark. However, the female shark usually makes it through this process unharmed because its skin is much thicker than that of the male shark.

Characteristics of Cartilaginous Fish: In addition to the difference in their skeletons, cartilaginous fish have gills that open to the ocean through slits, rather than the bony covering that is present in bony fish. Different shark species may have different numbers of gill slits.Cartilaginous fish may also breathe through spiracles, rather than gills.Spiracles are found on top of the heads of all rays and skates, and some sharks.ifferent shark species may have different numbers of gill slits. Cartilaginous fish may also breathe through spiracles, rather than gills. Spiracles are found on top of the heads of all rays and skates, and some sharks.

The cartilaginous fish, or Chondricthyes, include the sharks, rays, skates, and chimaeras. There are over eight hundred living species of sharks and rays, and about thirty species of chimaeras. Cartilaginous fish are true fish.They have fins and breathe with gills.he cartilaginous fish, or Chondricthyes, include the sharks, rays, skates, and chimaeras. There are over eight hundred living species of sharks and rays, and about thirty species of chimaeras. Cartilaginous fish are true fish.

Description. The spiny dogfish is one of the most abundant demersal shark species in Atlantic Canada and may be the most abundant shark species worldwide. This shark is a major predator on several commercially significant species such as herring, Atlantic mackerel and squid.s a very long-lived, slow-growing and late to mature shark, spiny dogfish are particularly vulnerable to fishing and slow to recover from over-exploitation. The major threat to this species in Atlantic Canada is bycatch.

Shark Information, Anatomy, Habitat, Feeding, Reproduction and Types of Sharks. Facts about Great White Sharks, Tiger Sharks, Bull Sharks, Whale Sharks, Bull Shark, Hammerhead Shark, Mako Shark and more. Sharks are a large group of fish that have inhabited the oceans for over 400 million years, even before dinosaurs populated our planet. They belong to the superorder Selachimorpha, and modern sharks have specific characteristics like a cartilaginous skeleton, five or six pairs of gills and several rows of teeth.

They have a white strip or white patch on the back bottom of the dorsal fin and a secondary keel on the tail. Only two shark species have a secondary keel on their tail; the other species is the salmon shark, which is also in this Lamnidae family.Porbeagle teeth have protrusions at the base and the teeth are smooth edged.nly two shark species have a secondary keel on their tail; the other species is the salmon shark, which is also in this Lamnidae family. Porbeagle teeth have protrusions at the base and the teeth are smooth edged.

In Galapagos sharks are a symbol of the marine. biodiversity and at least five shark species (reef whitetip shark. Triaenodon obesus, whale shark Rhincodon typus, hammerhead shark. Sphyrna lewini, Galapagos shark Carcharhinus galapagensis, and the. silky shark Carcharhinus falciformis) represent an important tourism.

The hammerhead sharks are the group of sharks that belong to the Sphyrnidae and are literally known for their flat-stretched heads. Learn some of the imperative hammerhead shark facts for kids including hammerhead sharks diet, habitat, and species. The hammerhead sharks are the group of sharks that belong to the Sphyrnidae and are literally known for their flat-stretched heads. These hammerhead sharks are being put in the genus Sphyrna.

It was once believed that all sharks had to swim constantly in order to breathe and could not sleep for more than a few minutes at a time. Oxygen-rich water flows through the gills during movement allowing the shark to breathe. While some species of sharks do need to swim constantly, this is not true for all sharks. Some sharks such as the nurse shark have spiracles that force water across their gills allowing for stationary rest. Sharks do not sleep like humans do, but instead have active and restful periods.

exists and is an alternate of . A whale shark. Sorry, but while the largest FISH species is the Whale shark (at 41 feet long), the Blue whale (a marine MAMMAL) is OVER DOUBLE that, at 98 feet in length. The Blue whale (Balaenoptera musculus) is the largest animal species this Earth has ever known to have existed. A whale shark.<br />Sorry, but while the largest FISH species is the Whale shark (at 41 feet long), the Blue whale (a marine MAMMAL) is OVER DOUBLE that, at 98 feet in length. The Blue whale <i>(Balaenoptera musculus)</i> is the largest animal species this Earth has ever known to have existed.

The Spiny dogfish shark (Squalus acanthias), also known as the Spiny dogfish, is one of the most common and well known species of dogfish.It is a small species of shark, with an average length of 28-39 inches (70-100 cm), and reaching a maximum weight of 9.8 kg.rom Wikipedia, the free encyclopedia. The Spiny dogfish shark (Squalus acanthias), also known as the Spiny dogfish, is one of the most common and well known species of dogfish. It is a small species of shark, with an average length of 28-39 inches (70-100 cm), and reaching a maximum weight of 9.8 kg.

A whale shark is a shark, the largest living fish in the world,  yet it is a filter feeder.   Even though it doesnt have the same diet as a shark, it is a shark.   â¦  its a shark but is named a whale shark for its large stature and  feeding    It's a shark.The only thing it got in common with whales is its  size.  A Whale Shark is a fish and a member of the shark family. Even though it doesnt have the same diet as a shark, it is a shark.   â¦  its a shark but is named a whale shark for its large stature and  feeding    It's a shark. The only thing it got in common with whales is its  size.

The world's most dangerous shark is the Bull Shark. The world's biggest shark is the Whale Shark (a shark is a fish). The Whale Shark can be up to 53 feet long and weight more than 13 ton.(The Blue Whale is a mammal that is why it is not the biggest fish.).The world's fastest shark is the Mako Shark.he world's most dangerous shark is the Bull Shark. The world's biggest shark is the Whale Shark (a shark is a fish). The Whale Shark can be up to 53 feet long and weight more than 13 ton.

Frilled sharks are so unusual that the 2 known species, the Frilled Shark and the Southern African Frilled Shark, are placed by some biologists in their own order (as we do, here). Historically, Frilled sharks have been considered a Family within the order of Hexanchiformes, or Cow sharks.ossil evidence dates frilled sharks to 95 million years ago. Some paleontologists suggest it is a living cladodont shark, a shark that existed as long ago as 380 million years.

One of two in the US, the Endangered Smalltooth Sawfish. was added to the ESA in 2003 and is its only marine animal. This species, which historically evolved from Sharks, now more closely resembles the Rays and can be found.

From Wikipedia, the free encyclopedia. The Spiny dogfish shark (Squalus acanthias), also known as the Spiny dogfish, is one of the most common and well known species of dogfish. It is a small species of shark, with an average length of 28-39 inches (70-100 cm), and reaching a maximum weight of 9.8 kg.rom Wikipedia, the free encyclopedia. The Spiny dogfish shark (Squalus acanthias), also known as the Spiny dogfish, is one of the most common and well known species of dogfish. It is a small species of shark, with an average length of 28-39 inches (70-100 cm), and reaching a maximum weight of 9.8 kg.

The Ground Sharks are the largest of shark orders with 277 currently identified species which includes many of the most typical, well known sharks as well as some unusual and potentially dangerous ones. Ground Sharks include Bull Sharks, Hammerheads, Blacktip, and Catsharks. While some of the Shark orders show great diversity as well as highly specialized characteristics, Ground Sharks enjoy more commonality within their order. They tend to be generally adapted, able to flourish in a broad array of habitats and enjoy a wide range of prey.

Whale sharks are fascinating creatures. The whale shark is one of only three filter-feeding sharks (the other two are the basking and megamouth shark).It is suggested that whale sharks do not reach maturity until they are over 30 years of age and a size of 9 meters.They can live to be over 100 years old.ut there could be whale shark birthing ground on other locations, we just do not know much about the mating and reproductive behaviour of the species. The smallest regularly observed whale sharks are about 2,5 meters in length, and probably around one year old. There is no knowledge where they spend their first year.

Dolphin teeth are more for catching fish than for tearing apart large prey, as sharks' teeth are. And sharks have very tough skins--hard to tear. But dolphins have a hard rostrum--beak--that's perfect for ramming. Sharks can and do kill and eat dolphins, which are highly nutritious for a shark. Dolphins aren't equipped to eat sharks, however, except for Orcas, which while called a whale, are really the largest species of dolphin. For other dolphins, then, they have no reason to kill a shark for food--just for defense--and dolphins have been known to swim off when a shark attacks one member of a pod.

The life-span of tiger sharks in the wild is considered to be 27 years in average, even though some may live up to 50 years of age. As with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years. Some experts presume that the lifespan of the Great White Sharks is approximately 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The typical life expectancy in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Whale sharks (Rhincodon typus) are also believed to live above 100 years, suggesting that the time to reach maturity is longer and young will take longer to born, making this type of shark more vulnerable.

The mako shark body color is very similar to the color of the other grey-blue sharks. Shark color can vary from grey-blue and blue to light gray, almost white. The predator has no swim bladder, and the only reason why it does not sink is because it is in constant motion throughout its life.The Mako sharks main diet consists of large marine fish: scomber, tuna, mackerel, herring and others.enus: Mako sharks. Mako shark is better known as grey-blue shark. However, it still has a few other names: bonito shark, mackerel shark, black winged shark, blue pointer shark. It should also be noted that during the last century experts have described another kind of mako sharks: the Longfin mako shark.

Great white sharks off the coast of California will be protected by the California Endangered Species Act beginning March 1. Three environmental groups asked the California Department of Fish and Wildlife to protect the fish at the beginning of February.

On April 27, 2015, we received a petition from Defenders of Wildlife to list the smooth hammerhead shark (Sphyrna zygaena) as threatened or endangered under the ESA throughout its entire range, or, as an alternative, to delineate the species into distinct population segments (DPSs).

Sargassum also provides essential habitat for shrimp, crab, fish, and other marine species that have adapted specifically to this floating algae. The Sargasso Sea is a spawning site for threatened and endangered eels, as well as white marlin, porbeagle shark, and dolphinfish.

The National Marine Fisheries Service (NMFS) was petitioned to add white sharks to the endangered species list but declined, based on its own research, bolstered by a preview copy of the study by the international team, said Heidi Dewar, a fisheries research biologist.

In 2011 an alarming study by Standford University suggested Great White Sharks were becoming an endangered species. But new look at research on them in the Eastern North Pacific Ocean indicates the population is now growing thanks to conservation efforts, according to an international research team.

The Bull shark (Carcharhinus leucas), or Zambezi shark, is a species of shark of the genus Carcharhinus. The shark grows to a maximum length of 11.5 feet (3.5 metres), but is usually 7.3-7.8 feet (2.2-2.3 metres) long.It is found in tropical and subtropical coastal waters worldwide, as well as river systems and freshwater lakes.he meat of the Bull shark is eaten by humans, the hide is used for leather, the fins are used in shark-fin soup and the liver is made into vitamin-rich oils. In certain areas, such as the Gulf of Mexico and South Africa, the Bull shark is also a popular game fish.

By Laila Kearney. SAN FRANCISCO, Feb 6 (Reuters) - The California Fish and Game Commission voted on Wednesday to recommend protection of the great white shark, the world's largest predatory fish, in waters along the Pacific Coast, under the state's endangered species law.

With over 500 species of sharks, there are many different shark sizes and shapes. The largest shark (and also largest fish) is the gentle whale shark (Rhincodon typus), which can reach lengths of 39 feet (12 meters). The smallest is the dwarf lantern shark (Etmopterus perryi) clocking in at only 8 inches long.

GIVING BIRTH TO LIVE SHARKS (VIVIPARITY). The female gives birth to live offspring, just like mammals, and they are born fully developed. There is a placental link to the eggs since they feed on the placenta. Specifically, the yolk sac develops within a placenta that is attached to the wall of the uterus and gives the offspring the nutrients necessary for their growth. Examples of viviparous are hammerhead sharks (Sphyrnidae family), the bull shark (Carcharhinus leucas) and the blue shark (Prionace glauca). These species give birth to live sharks which they abandon after the delivery. Newborn sharks instinctively know how to survive alone. Shark mothers do not take care of their young. EGGS DEVELOP INSIDE THE MOTHER (OVOVIVIPARITY)

Receive the latest local updates in your inbox. 1  Great white sharks off the coast of California will be protected by the California Endangered Species Act beginning March 1. 2  Three environmental groups asked the California Department of Fish and Wildlife to protect the fish at the beginning of February.

Because of these characteristics, many experts consider bull sharks to be the most dangerous sharks in the world. Historically, they are joined by their more famous cousins, great whites and tiger sharks, as the three species most likely to attack humans. Bull sharks get their name from their short, blunt snout, as well as their pugnacious disposition and a tendency to head-butt their prey before attacking. They are medium-size sharks, with thick, stout bodies and long pectoral fins. They are gray on top and white below, and the fins have dark tips, particularly on young bull sharks. They are found cruising the shallow, warm waters of all the worldâs oceans. Fast, agile predators, they will eat almost anything they see, including fish, dolphins, and even other sharks.

â¢ Hammerhead Sharks. There are several species of hammerhead sharks, which are in the family Sphyrnidae. These species include the winghead, mallethead, scalloped hammerhead, scoophead, great hammerhead and bonnethead sharks. These sharks differ from other sharks, as they have very unique hammer-shaped heads.

Live-Bearing Sharks. About 60% of the shark species give birth to live young. This is called viviparity. In these sharks, the young remain in the mother's uterus until they are born. The viviparous shark species can be further divided into the ways the young sharks are nourished while in the mother:

For most of the smaller species of dolphins, only a few of the larger sharks, such as the bull shark, dusky shark, tiger shark and great white shark, are a potential risk, especially for calves. Some of the larger dolphin species, especially orcas (killer whales), may also prey on smaller dolphins, but this seems rare.

Interestingly, the largest shark species, the whale shark, does not hunt at all. Enormous whale sharks, megamouth sharks and basking sharks filter feed on plankton. These species have specialized gills that sift through water to extract the microscopic algae and sea creatures that comprise plankton.

One of the five species belonging to the family Lamnidae, the salmon shark is a close relative of the Atlantic and Southern Pacific porbeagle shark (Lamna nasus). Together with the white shark and two species of mako shark, the salmon and porbeagle sharks share recognizable features that are peculiar to the lamnids.

Many people want to know what do sharks eat, but there is not a simple answer to that question. The diet of a particular shark can heavily depend on a variety of factors including habitat, location, food availability, shark species, and the size of the shark. The general answer to What do sharks eat is almost anything, but it is heavily dependent on the tastes of each species and the food that is available where it lives.

The viviparous sharks who carry the eggs until the pups are born, have different gestation periods. The dogfish shark is known to keep their eggs for 18 to 24 months. The bull shark gestation is about one year. The hammerhead shark gestation period is from 7 to 12 months. Other species that are ovoviviparous carry the eggs until the pups born alive and fully developed. They also have long gestation periods. The tiger shark gestation is about 14 to 16 months.

Sargassum also provides essential habitat for marine species,such as shrimp, crab, and fish, that have adapted specifically to this floating algae. The Sargasso Sea is a spawning site for threatened and endangered eels, as well as white marlin, porbeagle shark, and dolphinfish.ats of free-floating sargassum, a common seaweed found in the Sargasso Sea, provide shelter and habitat to many animals. Image credit: University of Southern Mississippi Gulf Coast Research Laboratory.

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Despite what media and movies may lead us to believe, sharks are not man eaters out to get us. Rather, they are widely diverse with more than 350 species ranging greatly in size, habitats and diet. Shark attacks are few and far between with very few species involved. According to the International Shark Attack File, you are about 45,000 times more likely to be killed in a car accident than you are by a shark attack. Yet sharks often get a bad rap for simply behaving naturally in their native environment.

The bala shark, Balantiocheilos melanopterus, also known as the tricolor shark, silver shark, or shark minnow, is a fish species of the family Cyprinidae, and is one of the two species in the genus Balantiocheilos.ala sharks are widely available in most pet stores, but will grow to a size too large for the home aquarium. They are a hardy fish that will tolerate temperature changes, pH changes, and other factors to which other fish may be sensitive. The water pH should be 6.0â8.0.

Sharks are related to skates and rays, and there are close to 400 species in the world. Along the Atlantic Coast, sharks generally migrate north in the spring and south in the fall. Sharks are related to skates and rays, and there are close to 400 species in the world. Along the Atlantic Coast, sharks generally migrate north in the spring and south in the fall. MAKO: Mako sharks are highly migratory animals that travel through temperate and tropical oceans.

The anal fin is located between the pelvic and caudal fins on the bottom, or ventral, part of the shark. Caudal Fins When it comes to the shark having the ability to propel itself through the water, they utilize what is called the caudal fin. This fin, also known as the tail fin, has an upper and lower lobe that, depending on the type of shark, can vary in shape and size. The upper lobe of the caudal fin produces the majority of the sharkâs thrusting abilities. The tail fin is one of the most important parts of the entire shark anatomy. Types Of Shark Tail Fins Because of all of these different types of fins, sharks are able to maneuver swiftly through the water while also remaining stabilized.

Goblin shark. The Goblin shark (Mitsukurina owstoni) is a rare, poorly-known species of deep-sea shark. Sometimes called a living fossil, it is the only living species in the family Mitsukurinidae. The Goblin shark can be easily identified by its long, flattened snout. Males can reach up to lengths of 12.6 feet (3.8 metres), and females can reach up to lengths of 12.2 feet (3.7 metres). The heaviest Goblin shark found weighed 210 kg (460 pounds).

How Many Green Sea Turtles Are Left Explore this Topic There are six species of sea turtles in the world and all are either threatened or endangered. For example, there are only around 30,000 leather back sea turtles ... There is no exact number of how many sea turtles are left in the world. Only 1 in every 1,000 to 10,000 baby sea turtles will make it do adulthood. They are currently ... Sharks eat Green Sea Turtles. However, a bigger enemy of the Green Sea Turtle is man. Turtles get caught in fishing nets and plastic and are left to die. ...

Shark. member of a group of almost exclusively marine and predaceous fishes. There are about 250 species of sharks, ranging from the 2-ft (60-cm) pygmy shark to 50-ft (15-m) giants. They are found in all seas, but are most abundant in warm waters.hark. member of a group of almost exclusively marine and predaceous fishes. There are about 250 species of sharks, ranging from the 2-ft (60-cm) pygmy shark to 50-ft (15-m) giants. They are found in all seas, but are most abundant in warm waters.

Blacktip Shark Blacktip sharks are one of the most common shark species found inshore off the coast of Florida. Although the majority of shark bites in Florida are likely attributable to this species, there has never been a fatal attackcredited to this species in this region.

Taxonomy refers to the official classifications of plants or animals according to accepted scientific standards and norms. As a group, sharks belong to the superorder called Selachimorpha. They are in the Chondrichthyes class (along with Chimaeras) under the subclass Elasmobranchii.This subclass is also where rays and skates fall and some sharks are thought to be very closely related to certain ray species (even more so than to other sharks, in fact). Selachimorpha is split into Galea and Squalea.The Galea group comprises:his subclass is also where rays and skates fall and some sharks are thought to be very closely related to certain ray species (even more so than to other sharks, in fact). Selachimorpha is split into Galea and Squalea. The Galea group comprises:

The most dangerous sharks are the Great White shark, the Tiger shark, the Hammerhead shark, the Mako shark and the Bull shark. On average, there are only about 100 shark attacks each year and only 10 of those result in a human death. You should check it out from their perspective, though! People kill thousands of sharks in a year for sport and for food. Shark skins are used to make products like any other leather would be. Up until the 1950's, shark livers were used as a vitamin A supplement. Shark fin soup and shark steaks are both eaten in many countries (Mako, seen in the top photo, is the most popular in the United States).

Hammerhead shark (family Sphyrnidae), any of eight shark species belonging to the genera Sphyrna (with seven species) and Eusphyrna (with one species), which are characterized by a flattened hammer- or shovel-shaped head, or cephalofoil. Hammerhead sharks, or sphyrnids, are perhaps the most distinctive and unique of all sharks.

The life-span of tiger sharks in the wild is considered to be 27 years in average, even though some may live up to 50 years of age. As with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years.Some experts presume that the lifespan of the Great White Sharks is approximately 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years.s with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years. Some experts presume that the lifespan of the Great White Sharks is approximately 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years.

The goblin shark -- a rarely seen species often called a living fossil -- was caught alive in Tokyo Bay but died after being put on display. TOKYO, Japan -- A goblin shark -- a rarely seen species often called a living fossil -- was caught alive in Tokyo Bay but died after being put on display, an aquarium said.The grey, long-nosed shark was caught in fishermen's nets around 150 to 200 metres (500 to 650 feet) deep.e were able to bring it to the aquarium alive and show it to the public, said an official at the park. But the shark died on the morning of January 27. Dead goblin sharks are caught from time to time, but it is rarely seen alive.

The life-span of tiger sharks in the wild is considered to be 27 years in average, even though some may live up to 50 years of age. As with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years.Some experts presume that the lifespan of the Great White Sharks is approximately 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years.he life-span of tiger sharks in the wild is considered to be 27 years in average, even though some may live up to 50 years of age. As with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years.

While bull sharks are commonly found along coastlines, bays, and harbors, they also frequent a most uncommon shark habitatfreshwater rivers. The species has been spotted 2,500 miles (4,000 kilometers) up the Amazon River in South America and dwell in Lake Nicaragua, a freshwater lake in Central America.Bull sharks have traveled up the Mississippi River as far north as Illinois and are regularly spotted in India's Ganges.hile bull sharks are commonly found along coastlines, bays, and harbors, they also frequent a most uncommon shark habitatfreshwater rivers. The species has been spotted 2,500 miles (4,000 kilometers) up the Amazon River in South America and dwell in Lake Nicaragua, a freshwater lake in Central America.

Amazing Thresher Shark Facts. 1  Thresher sharks are widely known for their elongated whip-like tail that is typically used to stun their prey. 2  These shark species are active predators. 3  They have small mouth and large eyes. 4  Common thresher is by far the largest thresher with a length of about 6.1 meters (20 feet). These shark species are active predators. 2  They have small mouth and large eyes. 3  Common thresher is by far the largest thresher with a length of about 6.1 meters (20 feet). 4  The weight of these sharks is around 500 kg (1,100 lb). 5  The length of bigeye thresher measure around 4.9 meters (16 feet).

Sand Tiger Shark Profile. Sand sharks, also known as sand tigers and gray nurse sharks, have a deceivingly ferocious look. They are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the mouth is shut.Despite this, they are a docile, non-aggressive species, known to attack humans only when bothered first. Sand sharks are brownish-gray with rust-colored spots on top and white underneath.hey are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the mouth is shut. Despite this, they are a docile, non-aggressive species, known to attack humans only when bothered first. Sand sharks are brownish-gray with rust-colored spots on top and white underneath.

Frilled shark habitat. A predominantly deepwater species, the frilled shark typically lives close to the seabed or in the water column at depths between 500 and 1,000 metres, but may be found as deep as 1,500 metres.he little-known, deepwater-dwelling frilled shark (Chlamydoselachus anguineus) is one of the most primitive species of living shark. The species name anguineus, which derives from the Latin for snakelike, only partly conveys its bizarre appearance.

While some species inhabit shallow, coastal regions, others live in deep waters, on the ocean floor and in the open ocean. Some species, like the bull shark, are even known to swim in salt, fresh and brackish waters. Most sharks are especially active in the evening and night when they hunt. Some sharks migrate over great distances to feed and breed. This can take them over entire ocean basins. While some shark species are solitary, others display social behavior at various levels.

Owing to its deepwater habitat, very few observations of the frilled shark have been made in its natural environment. Analysis of stomach contents of frilled sharks brought to the surface indicate that this species mostly preys on deep water squid and a variety of fish, including other sharks.he little-known, deepwater-dwelling frilled shark (Chlamydoselachus anguineus) is one of the most primitive species of living shark. The species name anguineus, which derives from the Latin for snakelike, only partly conveys its bizarre appearance.

Musick, J.A. & Fowler, S.L. (Shark Red List Authority) Justification: This assessment is based on the information published in the 2005 sharks status survey (Fowler et al. 2005). The Bull Shark (Carcharhinus leucas) is a common tropical and subtropical species that occurs in marine, estuarine and freshwater. It is the only species of shark that can exist for long periods in freshwater and penetrates long distances up large rivers. It is caught in fisheries throughout its range, but it is rarely a target species.

Just a few species of sharks that lay eggs include: 1  Bamboo sharks or carpet sharks. 2  Swell sharks. 3  Cat sharks. 4  Horn (bullhead) sharks.

Shark species that lay eggs include: 1  Bamboo sharks. 2  Wobbegong sharks. 3  Carpet sharks. 4  Horn (bullhead) sharks. 5  Swell sharks. 6  Many catsharks.

The Six gill Shark which is also known as Cow Shark is among the largest sharks of the world. It is predator and feeds on different type of animals. This large shark is found in almost all Oceans, especially in Pacific Ocean. It can be as long as 18 ft. This predator shark rarely attacks on human. Average weight is 590 kg of this type of shark.

Tiger sharks have darker stripe on their sides, especially in younger sharks. These are large sharks that may grow over 18 feet in length and weigh up to 2,000 pounds. Although diving with tiger sharks is an activity some engage in, these are another shark that is one of the top species reported in shark attacks. More Â».

What is the weight of a hammerhead shark? There are 9 known species of Hammerhead Sharks and their size ranges from 0.9 to 6 meters (3 to 20 feet) in length. They weigh between 500 to 1000 pounds. They are usually lig â¦ ht gray in color with a white belly. They can be distinctly recognized using their flat hammer like head. Hammerheads are one of the medium sized shark species. There are 9 known species of Hammerhead Sharks and their size ranges from 0.9 to 6 meters (3 to 20 feet) in length. They weigh between 500 to 1000 pounds. They are usually light gray in color with a white belly.

Shark size varies according to the species. The largest shark is the whale shark which is up to 41 feet long. The great white shark is up to 20 feet long. Bull sharks can reach up to 11 feet. Tiger sharks can measure between 10 to 14 feet. Links to other pages in this site.

The only known predator of the whale shark is humans.The mouth of the whale shark is massive, reaching a width of approximately 1 meter (over 3 feet). Only 3 shark species (the whale shark, the basking shark, and the megamouth shark) are filter feeders, straining their prey from the water column.

1 The only known predator of the whale shark is humans.The mouth of the whale shark is massive, reaching a width of approximately 1 meter (over 3 feet).  Only 3 shark species (the whale shark, the basking shark, and the megamouth shark) are filter feeders, straining their prey from the water column.

Basking sharks belong to the few plankton eaters in the shark world. The only other filter-feeding species known to prefer plankton are whale sharks (Rhincodon typus, Fact Sheet Shark Info 3/00) and megamouth sharks (Megachasma pelagios, Fact Sheet Shark Info 1/99).

Fast Facts. Size: The spined pygmy shark, a deep-sea shark, is one of the smallest at only about 7-8 inches, while the whale shark is the largest shark, and fish, at about 50 feet in length. Lifespan: Although lifespan varies by shark species, most sharks are long-lived and generally tend to live for 20-30 years.

How Long Do Great White Sharks Live. (How Long Do Sharks Live) Many sharks can live for about 20 to 30 years, with some species are known to live a fairly longer life. The lifespans of large sharks are greater than that of the smaller sharks. Great white shark reaches its maturity at the age of 15 and it has the lifespan of 25 to 30 years.

1 Humans are known predators of sharks most commonly included in the diets of Asian cultures. i.e. shark fin soup. 2  There are many types of small sharks that are no doubt part of the diet of other predatory animals in the ocean. There are many types of small sharks that are no doubt part of the diet of other predatory animals in the ocean. 2  Also sharks have been observed eating other sharks. 3  The Sharks predators are Dolphins, other sharks and people! 4  But people are the worst.

What eats a shark? What do sharks eat? There are many species of sharks, from tiny, two-foot (.75 meter) sand sharks to great white sharks that can reach a length of 20 feet (6.5 meters) or more. Most sharks eat fish, octopi, squid, turtles, and other cold-blooded sea creatures, along with the occasional sea bird caught napping on the water.

See more shark pictures. There are a lot of things about goblin sharks that scientists don't know. But one thing is undeniable -- goblin sharks are not attractive. Although you'd be hard-pressed to find a person who adores the visage of any shark, goblin sharks stand out as the ugly ducklings of the family. The scientific name of the species is Mitsukurina owstoni, but its memorable mug earned the goblin shark its common name.

Sandbar shark. The most common shark found in the Chesapeake is the sandbar shark (Carcharhinus plumbeus). The sandbar shark can be found in the Atlantic Ocean from Massachusetts all the way to southern Brazil, and is a seasonal visitor to the Chesapeake Bay in the summer and fall.n fact, there are at least 12 species of sharks found in the Bay. Some are quite abundant, while others are very rare. Whether you need to be concerned about shark attacks while swimming or boating is another story though.

HOW DO SHARKS BREATHE? Beneath the gills are tiny blood vessels that extract oxygen out of the water as it passes over them. Most shark species breathe by swimming with their mouths open which allows the water to pass over the gills. Some sharks like nurse, angel and lemon sharks have strong neck muscles that pump water over the gills, allowing the shark to breathe while resting on the ocean bottom. Sharks are fish, and therefore breathe through the use of

Shark tooth. A shark tooth is one of the numerous teeth of a shark. A shark tooth contains resistant calcium phosphate materials. Sharks continually shed their teeth; some Carcharhiniformes shed approximately 35,000 teeth in a lifetime, replacing those that fall out. There are four basic types of shark teeth: dense flattened, needle-like, pointed lower with triangular upper, and non-functional. The type of tooth that a shark has depends on its diet and feeding habits. In some formations, shark's teeth are a

Eating Habits of Tiger Sharks. A tiger shark will eat any type of fish, shark, animal, and small entity it can find in the water. They are very curious by nature and will taste anything that comes their way. The stomachs of tiger sharks have been found with some very unique items inside of them.ating Habits of Tiger Sharks. A tiger shark will eat any type of fish, shark, animal, and small entity it can find in the water. They are very curious by nature and will taste anything that comes their way. The stomachs of tiger sharks have been found with some very unique items inside of them.

Most species of sharks are found in the oceans. However, some of them are known to live in bodies of fresh water, like the bull shark which is known to travel up to 4,000 Km up the Amazon River.Sometimes, sharks have been found even in unusual fresh water bodies.nswer: Sharks live in every ocean in the world, however studies published have shown that up to 70% of oceans are free of sharks. Sharks are not territorial like most animals are, so they change frequently their habitat. As many other fish, females do not stay to take care of eggs.

The great white occupies the top slot on the list of ten most dangerous sharks, with the tiger shark coming in a distant second. The remaining seven species on the 10 most dangerous sharks list, in order of their recorded number of unprovoked lethal and non-lethal attacks over the centuries are: 4. The requiem shark (Carcharhinus spp.*) 5. The sand tiger shark (Carcharias tauruss) 6. The blacktip shark (Carcharhinus limbatus)

Shark Diet Variations. Setting the interfamilial variations aside for a moment, the average shark dines on fish, squid and crustaceans [source: Parker ]. When it comes to more specific diet preference, here are some favorites of individual shark species: 1  Hammerheads dine on stingrays. 2  Smooth dogfish sharks like to eat crabs and lobsters. 3  Tiger sharks eat sea turtles. 4  Blue sharks prefer squid.

Tiger sharks are one of the largest carnivores in the ocean. Juveniles have tiger-like stripes, which fade as they grow older. Tiger sharks are blue or green in color with a light yellow or white under-belly.This speices has a large blunt nose on the end of a wedge-shaped head.iger sharks are some of the largest predators in the ocean and have few species feed on them. Some juvenile tiger sharks, however, fall prey to other sharks. Female tiger sharks gives birth in a nursery, which provides protection during the birthing process and to pups in the absence of parents.

The iridescent shark (Pangasianodon hypophthalmus) is a species of shark catfish (family Pangasiidae) native to the rivers of Southeast Asia. It is not a shark. It is found in the Mekong basin as well as the Chao Phraya River, and is heavily cultivated for food there.he fish is named for the glow or iridescence exhibited in juveniles, as well as the shark-like appearance of this and other shark catfish. It is also known as Siamese shark or sutchi catfish in the aquarium hobby. Adults reach up to 130 cm (4 ft) in length and can weigh up to a maximum of 44.0 kg (97 lb).

Sharks live in every ocean. Sharks swim in every ocean of the world, from warm tropic waters to icy polar. seas. Some live in the deep, dark waters of the ocean, while others bask in sunlit. waters close to the surface. Some prefer the high seas, others live in water closer. to shore. A few sharks even swim up rivers, and at least one species, the bull. shark, is sometimes found in fresh water lakes. 2. All sharks look alike. No, many kinds of sharks which live in the open ocean have torpedo-shaped. bodies.

There is considerable variation between species in the length of pregnancy. At least one group of fish has been named after its pregnancy characteristics. The surfperch, genus Embiotoca, is a saltwater fish with a gestation period of three to six months.This lengthy period of pregnancy gives the family its scientific name from the Greek embios meaning persistent and tokos meaning birth.xamples of ovoviviparous fish are many of the squaliform sharks, which include sand sharks, mackerel sharks, nurse sharks, requiem sharks, dog sharks and hammerheads, among others, and the lobe finned coelacanth.

How to Draw a Goblin-shark. Start the drawing the Goblin-shark! Step 1. The drawing the Goblin-shark! Step 2.The drawing the Goblin-shark! Step 3.The drawing the Goblin-shark! Step 4. The drawing the Goblin-shark!ow to Draw a Goblin-shark. Start the drawing the Goblin-shark! Step 1. The drawing the Goblin-shark! Step 2. The drawing the Goblin-shark! Step 3. The drawing the Goblin-shark!

There are more than 500 species of sharks swimming in the worldâs ocean. Yet when most people think of these cartilaginous fish, a single image comes to mind: a large, sharp-toothed and scary beast. That generalization does sharks a huge disservice, as they have far more variety than that.oday, fins are the most valuable part of a shark. The targeted shark-fin fisheries around the world are trading the fins of between 26 to 73 million sharks every year (according to a 2006 estimate) with a worth of $400-550 million. Driving this trade is the demand for and consumption of shark fin soup in Asia.

Lately, GPS systems have brought a new way to track migration and how long do sharks live, providing more accurate information about them. Shark lifespan vary by kind and it is very different for each of them. While many types live 20 to 30 years in the wild, there are some types that live much longer than others.ately, GPS systems have brought a new way to track migration and how long do sharks live, providing more accurate information about them. Shark lifespan vary by kind and it is very different for each of them. While many types live 20 to 30 years in the wild, there are some types that live much longer than others.

Whale vs Shark. Whales are mammals and sharks are fish. When whales give birth to young ones, sharks lay eggs. Unlike the young sharks, young whales are fed milk. The whales raise their young ones whereas sharks do not.Whales have bones whereas the sharks have no bones but only cartilage.hale vs Shark. Whales are mammals and sharks are fish. When whales give birth to young ones, sharks lay eggs. Unlike the young sharks, young whales are fed milk. The whales raise their young ones whereas sharks do not.

How to Draw a Goblin-shark. Start the drawing the Goblin-shark! Step 1. The drawing the Goblin-shark! Step 2.The drawing the Goblin-shark! Step 3.The drawing the Goblin-shark! Step 4. The drawing the Goblin-shark!Step 5.tart the drawing the Goblin-shark! Step 1. The drawing the Goblin-shark! Step 2. The drawing the Goblin-shark! Step 3. The drawing the Goblin-shark! Step 4. The drawing the Goblin-shark! Step 5.

Geographic Range. Tiger sharks are found in many subtropical and tropical waters, primarily from 45Â°N to 32Â°S. Tiger sharks have been sighted from the eastern coast of North America to the eastern coast of Brazil. This includes the coasts of southern North America, Mexico, and Latin America along the Gulf of Mexico.iger sharks are some of the largest predators in the ocean and have few species feed on them. Some juvenile tiger sharks, however, fall prey to other sharks. Female tiger sharks gives birth in a nursery, which provides protection during the birthing process and to pups in the absence of parents.

Aggressive overfishing threatens to push some shark species to extinction, and a new study puts annual shark deaths at 100 million. Our analysis shows that about one in 15 sharks gets killed by fisheries every year, study leader Boris Worm, a professor of biology at Canada's Dalhousie University, said in a statement. With an increasing demand for their fins, sharks are more vulnerable today than ever before.. Based on available data for shark deaths and estimates of unreported illegal catches, the researchers estimated that 100 million sharks were killed in 2000 and 97 million in 2010.

Well, it turns out that killer whales have been known to prey on sharks. Orcas have also been known to eat mako sharks and several other species. When hunting sharks, killer whales always end up flipping the shark upside down, regardless of how the attack starts.ize of a killer whale compared to a human. Photo credit: Chris huh, CC BY-SA 3.0. Great White Shark, Carcharodon carcharias: 1  Size: White sharks can reach lengths of more than 20 feet (6 m) and weigh more than 5,000 pounds (2,268 kg). 2  Speed: They usually swim at speeds of around 15 miles (24 km) per hour.

Some scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age.Like with other species, tiger sharks in captivity do not live as lengthy as in wildlife reaching only 17 to 20 years.n the wild, it is thought that their life expectancy is 30 years. The typical lifespan in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Sandbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.

Bonnetheads Can Survive On Seagrass Alone, Study Finds By Suman Varandani @suman09 On 01/11/18 AT 6:17 AM Sharks are infamous as meat eaters who often prey on sea creatures and sometimes humans. However, a new study has found that there is a species of shark that can survive on a vegetarian diet. Meet the bonnethead shark, a member of the hammerhead shark genus Sphyrna in the family Sphyrnidae. A study, led by Samantha Leigh, a doctoral candidate at the University of California, Irvine, found that these sharks are able to survive on a diet of seagrass, a plant that grows on the ocean floor. The study was based on a research conducted 10-years ago, which examined the sharks' stomach contents.

Porbeagle Shark Facts. The Porbeagle Shark, also called Lamna nasus, comes from the family of Lamnidae sharks. It is mostly found in cold and temperate waters of the North Atlantic Ocean. This is a species of the mackerel shark and is a close relative of the salmon shark.The Porbeagle can reach over 8 feet (2.5 meters) in length and can gain a weight of 135 kilograms or 298 pounds. They are normally white at the bottom and grey on top giving it some nice camouflage for hunting.ou can mostly find this shark in the North Atlantic on the coasts of Greenland, Canada, Russia and Scandinavia. Further south, this shark can be spotted near Bermuda, New Jersey, Madeira, Brazil, Chile and Morocco. It has also been sighted in the Mediterranean Sea. The Porbeagle is known to migrate long distances.

The typical life expectancy in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Whale sharks (Rhincodon typus) are also believed to live above 100 years, suggesting that the time to reach maturity is longer and young will take longer to born, making this type of shark more vulnerable.ately, GPS systems have brought a new way to track migration and how long do sharks live, providing more accurate information about them. Shark lifespan vary by kind and it is very different for each of them. While many types live 20 to 30 years in the wild, there are some types that live much longer than others.

There is over 350 species of sharks and more are being reported all the time, how ever there are also roughly 400 species of rays which are close relatives to the sharks. well my point is that each shark has its own speed if you would like to post a different question a little more specific i would gladly answer it!

With more than 400 different species of sharks living in the world's oceans, there are approximately 70 to 100 shark attacks each year. Since the infamous shark attacks at the New Jersey shore that killed four people in July 1916 and inspired the Steven Spielberg film Jaws, shark attacks have been on the rise.

(Zebra sharks are often called leopard sharks in Australia, but they are a different species from the leopard sharks found off the west coast of North America.) The 20-something shark at Reef HQ Great Barrier Reef Aquarium in Townsville laid 41 eggs without a father. Three of them hatched into healthy pups, all female.

There is no other species of shark out there that compared to the look of the Hammerhead Shark. Hammerhead Shark Description As mentioned, this species of shark has a head that is wide like the head of a hammer and then the long handle as it goes back to the rest of the body.

There's something very special about the Great White Shark. Over 465 species of sharks are known to Science. Each and every one of them is fascinating in its own way. Yet in the public's imagination, one shark species looms larger than all the others combined. The Great White is a veritable 'superstar' among sharks.

The great hammerhead shark is the largest species of hammerhead shark and one of the few species of hammerhead shark that is potentially dangerous to humans. This is due to the sheer size of the giant hammerhead shark and also because the giant hammerhead is known to have an aggressive temperament.

What do mako sharks eat? Sharks that eat fish may also eat other marine life, and some species of shark do not eat fish. Species that fall into the filter feeder category, such as basking sharks, eat plankton, which are tiny organisms floating in the water.

Species Variant. There are nine variants of hammerhead shark and an additional species that is similar. The Winghead shark, native to the South Asian coastal waters, has larger cephalofoils than any other hammerhead sharks, though they are smaller than the largest of the hammerhead sharks, the Great Hammerhead.

There is no other species of shark out there that compared to the look of the Hammerhead Shark. Hammerhead Shark Description. As mentioned, this species of shark has a head that is wide like the head of a hammer and then the long handle as it goes back to the rest of the body. This shape is actually appropriately called cephalofoil.

While some shark species are solitary, others display social behavior at various levels. Hammerhead sharks, for instance, school during mating season around seamounts and islands. Some shark species, like the great white shark, attack and surprise their prey, usually seals and sea lions, from below.

Bala Shark And Angel Fish in the Bala Shark, Silver Shark forums, part of the Freshwater Sharks category. I am wanting to add 2 Angel fish with my 3 Bala Sharks in my 46 gallon tank. At the moment that is all I have in there. They are less then and inch.ala Shark And Angel Fish in the Bala Shark, Silver Shark forums, part of the Freshwater Sharks category. I am wanting to add 2 Angel fish with my 3 Bala Sharks in my 46 gallon tank. At the moment that is all I have in there. They are less then and inch.

Blue sharks eat a significant amount of squid, while tiger sharks are known to eat sea turtles. Smooth dogfish sharks eat crabs and lobsters, and hammerhead sharks prefer stingrays. Some sharks that are quick and large enough also hunt sea mammals. Great white sharks, tiger sharks and mako sharks have been known to eat sea lions, seals, dolphins, porpoises and sea birds. They also prey on large fish like mackerel and tuna. The largest shark, the whale shark, doesn't hunt for its food.

Most species of sharks are found in the oceans. However, some of them are known to live in bodies of fresh water, like the bull shark which is known to travel up to 4,000 Km up the Amazon River.ost species of sharks are found in the oceans. However, some of them are known to live in bodies of fresh water, like the bull shark which is known to travel up to 4,000 Km up the Amazon River.

Examples of shallow water sharks are the nurse, the hammerhead, the sandbar, the great white and the tiger shark. Pelagic sharks are shortfin makos and whale sharks. Deep water sharks, such as catsharks, goblin sharks and megamouth sharks, stay in cold water all year round.lthough large temperate sharks will travel into tropical waters, they will swim only at depths where the temperature is in their preferred range. Smaller sharks are much more affected by heat and cold and stay within their limits. Sandbar sharks like water temperature between about 15Â°-30Â°C (59&deg-86&degF).

The Whitetip Reef Shark is also known as the Triaenodon Obesus. Along with the Blacktip Reef Shark and Gray Reef Shark, it is one of the most frequent sharks in the Indo-Pacific. This species is easily spotted due to its curious, irregular, and waving swimming style and of course, the white tip on its dorsal fin. This amazing fish is a very slim species.

While millions flock to the world's beaches every year, an entirely separate world thrives beneath the big blue sea everyday. With more than 400 different species of sharks living in the world's oceans, there are approximately 70 to 100 shark attacks each year. Since the infamous shark attacks at the New Jersey shore that killed four people in July 1916 and inspired the Steven Spielberg film Jaws, shark attacks have been on the rise.

Not to be confused with whitetip reef shark. The Oceanic whitetip shark (Carcharhinus longimanus), also known as Brown Milbert's sand bar shark, Brown shark, Nigano shark, Oceanic white-tipped whaler, and Silvertip shark, is a large pelagic requiem shark inhabiting tropical and warm temperate seas.he oceanic whitetip shark, or lesser white shark was described in 1831 by naturalist Rene-RenÃ© Primevere, primevÃ¨re lesson who named The shark. Carcharhinus maou it was next Described By Cuban felipe poey in 1861 as. squalus longimanus

Answer: The fastest shark is a Mako Shark, the shark can reach a speed of 45 mph. The Great White Shark attack with a speed of about 30 mph. Answer: It is said that sharks can scent 1 single drop of blood in a 6 miles distance, but I have never heard about documented proofs telling so.nswer: The fastest shark is a Mako Shark, the shark can reach a speed of 45 mph. The Great White Shark attack with a speed of about 30 mph. Answer: It is said that sharks can scent 1 single drop of blood in a 6 miles distance, but I have never heard about documented proofs telling so.

Order: Squaliform. Dogfish sharks are the second largest of shark orders with 119 species. Dogfish come in all shapes, sizes, and colors and they live in almost every ocean habitat and depth.ogfish sharks are an excellent example of the exciting biodiversity that can be found among sharks! Photo Gallery. With over 100 species, Dogfish literally come in all shapes and sizes.

Sharks belong to the superorder Selachimorpha in the subclass Elasmobranchii, in the class Chondrichthyes. The Elasmobranchii also include rays and skates; the Chondrichthyes also include Chimaeras. The first sharks appeared in the oceans 440 million years ago. Listed below are extant species of shark. Sharks are spread across 511 described species in eight orders. The families and genera within the orders are listed in alphabetical order.

Order: Squaliform. Dogfish sharks are the second largest of shark orders with 119 species. Dogfish come in all shapes, sizes, and colors and they live in almost every ocean habitat and depth.rder: Squaliform. Dogfish sharks are the second largest of shark orders with 119 species. Dogfish come in all shapes, sizes, and colors and they live in almost every ocean habitat and depth.

You seriously have no idea how many more sharks are killed by people than people are killed by sharks. By Colin Lecher posted Apr 19th, 2013 at 2:00pm Sharks have been mythologized in our culture as ruthless brutes and hunters, but the truth is humans are way, way more of a threat to sharks than sharks are to us. About 100 million sharks are killed annually, mostly related to finning (when the shark fins are sliced off and sold, often for soup). Marketer Joe Chernov wanted to visually express how the amount of shark attacks that kill people in a year stacks up against the number of people attacks that kill sharks. (It takes four seconds for us to kill the number of sharks that kill us in a year.)

Blacktip Reef Shark. Blacktip Reef shark are among the most popular Sharks inhabiting the tropical coral reefs of the Indian and Pacific Oceans, because Black Tip Reef Sharks prefer shallow, inshore waters.They are typical in appearance of how humans imagine a shark to look, and can be seen at our big ocean tank!lacktip Reef Shark. Blacktip Reef shark are among the most popular Sharks inhabiting the tropical coral reefs of the Indian and Pacific Oceans, because Black Tip Reef Sharks prefer shallow, inshore waters. They are typical in appearance of how humans imagine a shark to look, and can be seen at our big ocean tank!

3,548 pages on this wiki. The Frilled shark, (Chlamydoselachus anguineus) is one of two extant species of shark in the family Chlamydoselachidae, with a wide but patchy distribution in the Atlantic and Pacific Oceans.,548 pages on this wiki. The Frilled shark, (Chlamydoselachus anguineus) is one of two extant species of shark in the family Chlamydoselachidae, with a wide but patchy distribution in the Atlantic and Pacific Oceans.

Dangerous Sea Life. Biting and other aggressive animals. There are about 350 species of sharks, only 30 species could potentially be dangerous to humans and only 12 are reported potentially aggressive and dangerous. To put things in perspective 300 times more drowning are reported than fatal shark attacks. Among the most dangerous to humans are: Great white; Tiger shark; Bull shark; Oceanic White tip

The blacktip reef shark (Carcharhinus melanopterus) is a species of requiem shark, in the family Carcharhinidae, easily identified by the prominent black tips on its fins (especially on the first dorsal fin and its caudal fin).his shark is used for its meat, fins, and liver oil, but is not considered to be a commercially significant species. The International Union for Conservation of Nature has assessed the blacktip reef shark as Near Threatened.

SHARKOPEDIA: THE TOP 10 LARGEST SHARKS. Counting down the 10 largest sharks is a tricky endeavour. Beyond the two largest shark species of which we know, there is no consensus on how to rank the largest living ones. New measurements continue to be reported, and experts continue to squabble over which to accept and which to toss back. But until everyone's certain, here's our humble list of the worldâs top 10 largest shark species.

Bull shark Facts. Bull shark is a type of shark that is best known by its aggressive behavior. This fish can be found in warm, shallow waters of all oceans of the world.Bull sharks can survive in brackish water (mixture of salty and fresh water), but they can be also found in the Amazon and Mississippi rivers and in various lakes.ull shark Facts. Bull shark is a type of shark that is best known by its aggressive behavior. This fish can be found in warm, shallow waters of all oceans of the world.

The blacktip reef shark (Carcharhinus melanopterus) is the most commonly encountered species of shark in tropical Indo-Pacific reefs. Its medium-sized, streamlined body is brownish-grey, with a white underside.he blacktip reef shark (Carcharhinus melanopterus) is the most commonly encountered species of shark in tropical Indo-Pacific reefs. Its medium-sized, streamlined body is brownish-grey, with a white underside.

Accounts of the blacktip reef shark's life history have been variable and sometimes contradictory, in part reflecting geographical differences within the species. Like other members of its family, this shark is viviparous, with females giving birth to two to five young on a biennial, annual, or possibly biannual cycle.his shark is used for its meat, fins, and liver oil, but is not considered to be a commercially significant species. The International Union for Conservation of Nature has assessed the blacktip reef shark as Near Threatened.

The blacktip reef shark (Carcharhinus melanopterus) is a species of requiem shark, in the family Carcharhinidae, easily identified by the prominent black tips on its fins (especially on the first dorsal fin and its caudal fin). tracking study off Palmyra Atoll in the central Pacific has found the blacktip reef shark has a home range of around 0.55 km 2 (0.21 sq mi), among the smallest of any shark species. The size and location of the range does not change with time of day.

Oceanic whitetip shark habitat. This shark is an oceanic, epipelagic species that is found mainly in offshore, tropical and warm-temperate waters. On occasion individuals are seen in shallower waters near land, especially around oceanic islands.ceanic whitetip shark habitat. This shark is an oceanic, epipelagic species that is found mainly in offshore, tropical and warm-temperate waters. On occasion individuals are seen in shallower waters near land, especially around oceanic islands.

The whale shark (Rhincodon typus) is a slow-moving filter feeding shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.50 ft) and a weight of approximately 21.5 metric tons (47,000 lb), and unconfirmed reports of considerably larger whale sharks exist.he name whale shark comes from the fish's size, being as large as some species of whales and also that it is a filter feeder like baleen whales.

Oceanic whitetip shark range. The oceanic whitetip shark can be found from Maine in the United States, south to Argentina in the Western Atlantic Ocean, including the Caribbean and Gulf of Mexico,and from Portugal to the Gulf of Guinea in the eastern Atlantic.This species may also occur in the Mediterranean Sea.ceanic whitetip shark habitat. This shark is an oceanic, epipelagic species that is found mainly in offshore, tropical and warm-temperate waters. On occasion individuals are seen in shallower waters near land, especially around oceanic islands.

View full size image. A rare shark couple found for the first time off the coast of Australia may force a rethink of the species' range. Two years ago, a sport fisherman caught a pair of rare sharks off Rottnest Island in Western Australia.iew full size image. A rare shark couple found for the first time off the coast of Australia may force a rethink of the species' range. Two years ago, a sport fisherman caught a pair of rare sharks off Rottnest Island in Western Australia.

Share. The Oceanic Whitetip Shark is one of the most widely ranging sharks, common throughout the warm latitudes of all oceans. It lives in the open ocean, where it is a predator at the top of pelagic food webs. This species gets its common name from the white tips of its dorsal, pectoral, and tail fins.hare. The Oceanic Whitetip Shark is one of the most widely ranging sharks, common throughout the warm latitudes of all oceans. It lives in the open ocean, where it is a predator at the top of pelagic food webs. This species gets its common name from the white tips of its dorsal, pectoral, and tail fins.

There are many species of sharks in the ocean. Sharks are one of the better known predators in the sea. Many sharks have sharp teeth that are used to catch their food. The most dangerous shark is the great white shark, which can grow to over 20 feet long.

1 Only 3 shark species (the whale shark, the basking shark, and the megamouth shark) are filter feeders, straining their prey from the water column.  The whale shark can reach a length of 40 feet or more and weighs 20 or more tons.

Sand sharks, also known as sand tiger sharks, grey nurse sharks or ragged tooth sharks, are mackerel sharks of the family Odontaspididae. They are found worldwide in temperate and tropical waters. The three species are in two genera.

Some sharks can live in fresh water for a limited amount of time. Sharks have been known to swim up rivers such as the Mississippi, but only certain species of sharks have the ability. Bull sharks have been known to swim up rivers. They have a higher tolerance for fresh water than most other sharks.

Did you know? The largest whale shark ever measured was 40 feet (12.2 meters) long; however, the species is thought to grow even bigger. Size relative to a bus: As the largest fish in the sea, reaching lengths of 40 feet (12 meters) or more, whale sharks have an enormous menu from which to choose.id you know? The largest whale shark ever measured was 40 feet (12.2 meters) long; however, the species is thought to grow even bigger. Size relative to a bus: As the largest fish in the sea, reaching lengths of 40 feet (12 meters) or more, whale sharks have an enormous menu from which to choose.

SHARKS LIFE CYCLE. Each shark species has its own expected life span and it is difficult to set an average for sharks as a whole. However, very broadly speaking, most sharks live for between 20 and 30 years. The Spiny Dogfish lives for over a century, and some Whale Sharks have been known to do the same.

For other uses, see Mako shark (disambiguation). Isurus is a genus of mackerel sharks in the family Lamnidae, commonly known as the mako sharks. The two living species are the common shortfin mako shark (I. oxyrinchus) and the rare longfin mako shark (I. paucus).

Learn about sharks and opportunities to see them in the wild including whale sharks, hammerheads, and others.Sharks are the ocean's top predator; the health of the ocean depends on healthy populations.There are more than 1,100 species of sharks and rays around the world.earn about sharks and opportunities to see them in the wild including whale sharks, hammerheads, and others.

The carpet sharks (Orectolobiformes) are so-called because many of these species have ornate carpet-like skin patterns. 1  They include the whale shark, wobbegongs, bamboos sharks and nurse sharks. 2  Sawsharks (Pristiophoriformes) are 5-foot-long, bottom-dwelling sharks with toothy saw-like snouts.

A: Depending on the species, sharks either lay eggs or give birth to live young. Sharks that lay eggs are oviparous, and sharks that give birth to live young are viviparous. Viviparous sharks are further divided into placental and aplacental categories, meaning the shark pups either have a placenta or not.

1 The skull of a shark is made of only 10 cartilaginous elements while a bony fish skull has about 63 bones. 2  Bony fish have pleural ribs formed from dermal bone and sharks lack these ribs.3  Unlike bony fish that have a protective bony plate covering their vulnerable gills, the gill slits of a shark are exposed and visible.hark species have eyelids and some can even protect their eye with a tough third eyelid called a nictating membrane. Other species, like the great white shark, have muscles that can roll the eye back into the socket for protection. Bony fish lack eyelids or the ability to protect their eyes.

The blue shark is considered to be one of the most dangerous sharks in the waters. It has been known to attack people, which makes it one of species of shark that people most fear. Blue sharks can grow up to 12 feet long so this is no small shark to be trying to get away from. Due to the speed and the strength of it very few of its prey have a chance of survival.

White Shark redirects here. For the novel, see White Shark (novel). The great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans.

Animal Species:Bull Shark, Carcharhinus leucas Valenciennes, 1839. The Bull Shark is one of the few sharks that are potentially dangerous to people and is probably responsible for most of the shark attacks in and around Sydney Harbour. The species is also the only widely distibuted shark that stays in fresh water for long periods of time to feed and breed.

3. Great White Shark. The great white shark, Carcharodon carcharias, has got to be one of the worlds most well known vicious sharks. These sharks have been known to grow as long as 26.2 feet and weigh as much as 5000 lbs! The Great White shark is the last surviving member of its species genus, Carcharodon.

The truth is that most sharks are carnivorous and efficient predators, although some others feed on plankton. It depends on the type of shark as various species have different feeding habits. Shark feeding also depends on where they live because this is the main factor to define the kind of prey available.

How Long Do Great White Sharks Live. Many sharks can live for about 20 to 30 years, with some species are known to live a fairly longer life. The lifespans of large sharks are greater than that of the smaller sharks. Great white shark reaches its maturity at the age of 15 and it has the lifespan of 25 to 30 years.

Quick Answer. Depending on the species, sharks either lay eggs or give birth to live young. Sharks that lay eggs are oviparous, and sharks that give birth to live young are viviparous. Viviparous sharks are further divided into placental and aplacental categories, meaning the shark pups either have a placenta or not. Continue Reading

The shortfin mako shark is the fastest species of shark. Its speed has been recorded at 40 km/h (25 mph) with bursts of up to 74 km/h (46 mph). This high-leaping fish-they can leap approximately 9 m (30 ft) high or higher in the air-is a highly sought-after game fish worldwide.he shortfin mako shark is the fastest species of shark. Its speed has been recorded at 40 km/h (25 mph) with bursts of up to 74 km/h (46 mph). This high-leaping fish-they can leap approximately 9 m (30 ft) high or higher in the air-is a highly sought-after game fish worldwide.

the shortfin mako shark is the fastest species of shark its speed has been recorded at 40 km h 25 mph with bursts of up to 74 km h 46 mph this high leaping fish they can leap approximately 9 m 30 ft high or higher in the air is a highly sought after game fish worldwidehe shortfin mako shark is the fastest species of shark its speed has been recorded at 40 km h 25 mph with bursts of up to 74 km h 46 mph this high leaping fish they can leap approximately 9 m 30 ft high or higher in the air is a highly sought after game fish worldwide

Sharks maintain several rows of growing teeth to replace any damaged and missing teeth in the two or three rows of mature teeth. The amount of teeth a shark has varies from one species to the next. For example, a whale shark has about 300 teeth in each row, whereas the great white shark has approximately 50 teeth total. Learn more about Sharks

Sharks & Rays. Whale Shark. The largest fish in the world is the graceful, harmless Whale Shark. Though they reach the size of a school bus, Whale Sharks eat tiny plankton and fish eggs, which they filter feed as they swim slowly along with their giant mouths wide open. They are one of only three species of filter feeding sharks.

Most shark species breathe by swimming. with their mouths open which allows the. water to pass over the gills. Some sharks. like nurse, angel and lemon sharks have. strong neck muscles that pump water over the. gills, allowing the shark to breathe while resting. on the ocean bottom. Sharks are fish, and therefore breathe through the use of. gills, slit-like openings on the sides of their head.

Great white shark. The great white shark (Carcharodon carcharias) is a species of shark. They are world's largest living predatory fish. Mature sharks may grow up to 6.4 m (21 ft) in length and 3,324 kg (7,328 lb) in weight). There also have been a few reports of great white sharks measuring over 8 m (26 ft).

Sharks aren't really afraid of dolphins; that's a common misconception that has led people to believe that when dolphins are present in an area, there will not be any sharks nearby. In fact, many species of shark and dolphin actually hunt and eat the same prey items, so the presence of dolphins often indicates the presence of sharks as well. Dolphins and sharks are two ocean predators who have to compete for food and territory.

Bull shark. The Bull shark (Carcharhinus leucas), or Zambezi shark, is a species of shark of the genus Carcharhinus. The shark grows to a maximum length of 11.5 feet (3.5 metres), but is usually 7.3-7.8 feet (2.2-2.3 metres) long. It is found in tropical and subtropical coastal waters worldwide, as well as river systems and freshwater lakes.

Unlike other species of shark, the bull shark is able to tolerate fresh water. As a result of this, it is not uncommon for bull sharks to be found in freshwater rivers and lakes. In recent years there have been a number of reported attacks by bull sharks in fresh water and also river mouths. Shark attacks on humans however are rare and often the result of mistaken identity. The onus is always on the individual to ensure his or her safety.

Answer: Sharks live in every ocean in the world, however studies published have shown that up to 70% of oceans are free of sharks. Sharks are not territorial like most animals are, so they change frequently their habitat.As many other fish, females do not stay to take care of eggs.ost species of sharks are found in the oceans. However, some of them are known to live in bodies of fresh water, like the bull shark which is known to travel up to 4,000 Km up the Amazon River.

1 Jacques-Yves Cousteau says that it is: the only species of shark that is never frightened by the approach of a diver, and they are the most dangerous of all sharks..  Fastest The fastest swimming sharks are the mako sharks and blue sharks, which can even leap out of the water. They are also probably the fastest fish. Estimates of their speed varies; some say that they can swim at about 60 miles per hour (97 kph), while more conservative estimates are about 22 mph (35 kph).

The largest weight of a whale shark registered is 47,000 pounds or 21.5 tonnes. From there, weights are smaller and change according with the species. Male bull sharks weight around 200 pounds while female bull sharks can reach up to 290 pounds. The largest tiger shark captured weight was 1,450 pounds. The great white shark weight ranges from 1,500 lb. to 2,500 lb.

Fact Sheet: Spiny Dogfish. The real spiny dogfish (Squalus acanthias) . Â© Shark Info / J. Stafford-Deitsch. The spiny dogfish is known primarily by virtue of its largest representative, the real spiny dogfish, Squalus acanthias. But the name spiny dogfish is not reserved for this one specific species alone.It covers an entire family of spiny dogfish including, for example, such different forms as Greenland sharks or cookie-cutter sharks.he distribution of the real spiny dogfish is limited (see map) since these animals generally prefer a water temperature ranging between 7 and 15 degrees. Nevertheless, they may well have the largest population of any given shark species.

How many types of sharks are there? More than 450 shark species have been documented as of 2014. Sharks have been around since prehistoric times, with evidence of their existence dating back hundreds of millions of years. The first sharks appeared in the world's oceans around 420 million years ago.

Shark and Ray Reproduction. Sharks have been around for a long time, making them evolutionarily successful. Over hundreds of millions of years of evolution, sharks have developed a wide range of reproductive adaptations, a characteristic which has allowed them to survive major extinction episodes.eproductive cycles for sharks can be as long as two years. For most sharks species, even the simplest descriptions of their reproductive cycles, including the ovarian cycle and gestation period, is lacking in detailed information.

The great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large lamniform shark which can be found in the coastal surface waters of all the major oceans.he great white shark has no natural predators other than the killer whale. The great white shark is arguably the world's largest known extant macropredatory fish, and is one of the primary predators of marine mammals.

How Fast Can a Shark Swim? Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour. Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured. The Blue Shark (Prionace glauca) is an open ocean glider, planing on wing-like pectoral fins and flattened belly.

Shark teeth are also useful in conducting research about the structure of teeth, shark migration patterns, and identifying shark species. The most ancient types of sharks date back to 450 million years ago, during the Late Ordovician period, and are mostly known by their fossilised teeth.

Fox shark is the earliest known English name for this species and is rooted in classical antiquity, from a belief that it was especially cunning. In the mid-19th century, the name fox was mostly superseded by thresher, referencing the shark's flail-like use of its tail.t is also known by many other common names, including Atlantic thresher, grayfish, green thresher, long-tailed shark, sea ape, sea fox, slasher, swiveltail, thintail thresher, thrasher shark, and whiptail shark.

Researchers realized that they had seen goblin sharks before -- not swimming in the seas, but in fossil remains. Shark fossils from the Scapanorhynchus species dating back more than 100 million years bore striking resemblance to the goblin shark [source: Bright ].he last goblin shark sighting occurred in 2007 in Tokyo Bay, Japan [source: Mehta ]. After one day in captivity, the living fossil fish died. Since opportunities like that one are few and far between, it may be a long time before we decode all the mysteries of the goblin shark.

Caribbean Reef Shark. The Caribbean Reef Shark, also called the Carcharhinus Perezi in the scientific community, is a member of the requiem shark species. They are mostly found on the East coast of America (Atlantic coast) and southwards.he tropical parts of the western Atlantic Ocean is home to this variety of sharks. Normally found on the outer edges of reefs, the Caribbean Reef Shark prefers to live in coral reefs and its shallow waters as well as continental shelves and insular shelves.

Best Answer: Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour.Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured.est Answer: Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour.

The great white shark, commonly known as the great white or the white shark, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans. The great white shark is notable for its size, with larger female individuals growing to 6.1 m in length and 1,905 kg in weight at maturity. However most are smaller, males measuring 3.4 to 4.0 m and females 4.6 to 4.9 m on average. According to a 2014 study the lifespan of great white sharks is estimated to be

The great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large lamniform shark which can be found in the coastal surface waters of all the major oceans.his shark reaches its maturity around 15 years of age and was previously believed to have a life span of over 30 years. The true lifespan of great white sharks is far longer, now estimated to be as long as 70 years or more, making it one of the longest lived cartilaginous fish currently known.

In the wild, it is believed that their life expectancy is about 30 years. Sandbar sharks or Brown sharks are thought to live between 20 and 30 years. Investigation made by Joung (2004) found to be about 20 years of age. While, Sminkey (1996) mention that sandbar sharks can live to be more than 30 years old.ately, GPS systems have brought a new way to track migration and how long do sharks live, providing more accurate information about them. Shark lifespan vary by kind and it is very different for each of them. While many types live 20 to 30 years in the wild, there are some types that live much longer than others.

Whale sharks are slow swimmers and their top speed is no more than 5 miles (8 kilometers per hour) probably due to the fact that whale shark is the biggest fish in the world. It reaches a length of 40 ft (12 m) and weighs up to 13 tons (12 metric tons).Great white sharks are one of the fast movers in water.ormally sharks swim at a speed of less than 5 kph but few species such as mako sharks are able to cruise at a speed of 48 kph. Makos are the worldâs fastest swimmers.

Some scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age.Like with other species, tiger sharks in captivity do not live as lengthy as in wildlife reaching only 17 to 20 years.andbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.

Probably the best known species of shark is the great white. This is believed to be the most dangerous type of shark in the world. People have been able to see them as they are among the rare species that do raise their heads out of the water. Great white sharks can grow up to 16 feet and weight around 1,500-2,400 pounds.

In the wild, it is believed that their life expectancy is about 30 years. Sandbar sharks or Brown sharks are thought to live between 20 and 30 years. Investigation made by Joung (2004) found to be about 20 years of age.While, Sminkey (1996) mention that sandbar sharks can live to be more than 30 years old.s with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years. Some experts presume that the lifespan of the Great White Sharks is approximately 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years.

While longevity data are not available for many sharks, maximum ages do vary by species. Some sharks like the smooth dogfish (Mustelus canis) may only live 16 years, while others such as the porbeagle shark, (Lamna nasus) may live as long as 46 years.Whale sharks (Rhincodon typus) the largest fish in the world may live over 100 years.here is no accurate data available about how long a Bull Shark can live to. However, they are known to live to ages of around 15 to 20 years. They reach full size and sexual â¦ maturity at around the age of 10. Since they are elusive creatures that havent been studied extensively, not much is known about them.

The Bull shark (Carcharhinus leucas), or Zambezi shark, is a species of shark of the genus Carcharhinus. The shark grows to a maximum length of 11.5 feet (3.5 metres), but is usually 7.3-7.8 feet (2.2-2.3 metres) long.It is found in tropical and subtropical coastal waters worldwide, as well as river systems and freshwater lakes.he shark grows to a maximum length of 11.5 feet (3.5 metres), but is usually 7.3-7.8 feet (2.2-2.3 metres) long. It is found in tropical and subtropical coastal waters worldwide, as well as river systems and freshwater lakes.

scalloped hammerhead shark Learn about the scalloped hammerhead shark. Contunico Â© ZDF Enterprises GmbH, Mainz Malpelo Island: scalloped hammerhead shark The waters off Malpelo Island, Colombia, are home to a diverse marine life, which includes the scalloped hammerhead shark. Contunico Â© ZDF Enterprises GmbH, Mainz; Hammerhead sharks are viviparous: they retain fertilized eggs within the body and give birth to live youngâfrom 2 to 42. Smaller species produce just a few young, whereas the great hammerhead will give birth to several dozen.

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Shark Species. There are many species of sharks found in the oceans around the world. Some of them are very big while others are quite small. Some of them are to be feared while others mind their own business and they are very calm. You may be surprised to learn some of the largest species of sharks in the ocean are the nicest ones to encounter.

The largest fish ever caught were Sharks, this is because the species can grow to large sizes when compared to other species. So we have created this list excluding the Shark species keeping in mind that not many sport fishing anglers will be targeting sharks for their amusement.

The whale shark (Rhincodon typus) is a slow-moving filter feeding shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.50 ft) and a weight of approximately 21.5 metric tons (47,000 lb), and unconfirmed reports of considerably larger whale sharks exist.hale sharks have a mouth that can be 1.5 m (4.9 ft) wide, containing 300 to 350 rows of tiny teeth and 10 filter pads which it uses to filter feed. Whale sharks have five large pairs of gills. The head is wide and flat with two small eyes at the front.

Some scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age.Like with other species, tiger sharks in captivity do not live as lengthy as in wildlife reaching only 17 to 20 years.ome scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age.

Of the hundreds of shark species, there are 3 most often implicated in unprovoked shark attacks on humans. These three species are dangerous largely because of their size and tremendous jaw power. Learn more about these three species, and how you can prevent a shark attack.

How big can sharks grow? Sharks come in a range of sizes. The largest shark known is the whale shark, which reaches lengths of 12 metres (almost 40 feet) or more. The smallest shark, the dwarf shark, is only 25 cm (10 inches) long. The basking shark is the largest shark in Atlantic Canada, routinely reaching lengths of 8-9 metres. The largest confirmed great white shark caught in Canada was more than 5 metres long.

Interesting facts and questions about sharks. How Big Is The Biggest Recorded Whale Shark? Answer: The Guinness Book of Records has the Worldâs Largest fish (a Whale Shark) registered as 12.65 meters which are 41 feet 6 inches. However, there are versions that whale sharks could reach up to 60 feet, but this is not confirmed. Links to other pages in this site. Where Do Tiger Sharks Live? How Do Sharks Breed? What To Do If A Shark Of The Atlantic Attack? How Do Sharks Communicate? Why Do Sharks Have Cartilage?

The name bull shark comes from the shark's stocky shape, broad, flat snout, and aggressive, unpredictable behavior. In India, the bull shark may be confused with the Sundarbans or Ganges shark. In Africa, it is also commonly called the Zambezi River shark or just Zambi.he bull shark (Carcharhinus leucas), also known as the Zambezi shark or, unofficially, as Zambi in Africa and Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers.

Sharks come in all sizes. The largest is the whale shark, which has been known to get as large as 18 meters (60 feet).The smallest fits in your hand. And the great white shark is somewhere in the middle. See photos and learn more about the wide diversity of sharks, read 5 reasons to revere sharks, and see even more articles about sharks.he smallest fits in your hand. And the great white shark is somewhere in the middle. See photos and learn more about the wide diversity of sharks, read 5 reasons to revere sharks, and see even more articles about sharks.

Ever wondered what species of shark you just caught? Or, what type of shark is swimming just off the beach near the sand bar? I know I've had both of the questions pop up on trips to the Alabama gulf coast. Here are the 16 most common sharks that swim the coastal waters of Alabama. See the descriptive information under each photo to help you identify one shark from another. The list was compiled with the help of Dr. Bob Shipp. Dr. Shipp is a leading authority on the fishes of the Gulf of Mexico.

The black tip reef shark is also known as the blacktip reef shark, black-tip reef shark, black finned shark, blacktip shark, black finned shark and Guliman (for a full list of names, click here to see the list on FishBase.lacktip reef sharks are not considered dangerous to humans, although they may bite if they interact with humans in shallow waters. According to the International Shark Attack File, there have been only 11 non-fatal, unprovoked attacks of black tip reef sharks on humans in the years 1580 - 2012.

Large sharks that living in temperate waters include the great white shark, the shortfin mako shark, and the basking shark. These large temperate sharks can generate their own body heat and are therefore able to travel farther than smaller temperate sharks, which cannot.lthough large temperate sharks will travel into tropical waters, they will swim only at depths where the temperature is in their preferred range. Smaller sharks are much more affected by heat and cold and stay within their limits. Sandbar sharks like water temperature between about 15Â°-30Â°C (59&deg-86&degF).

Tiger sharks have also been known to eat other tiger sharks, but they're not the only ones -- a tiger shark's fins are a hot culinary commodity in Asian culture. Shark fins provide the spaghetti-like noodles in shark-fin soup. In Hong Kong, a tureen of shark-fin soup costs $100 [source: McRae ].ea snakes were found 60 percent of the time, and sea turtles were found in 27 percent of the sharks, although only in larger sharks [source: Heithaus ]. But what gets people's attention is the wackier things that have shown up in a tiger shark's stomach.

Rays and skates, who primarily live on the ocean bottom, will eat other bottom-dwelling creatures, including marine invertebrates such as crabs, clams, oysters, and shrimp. Some huge cartilaginous fish, such as whale sharks, basking sharks and manta rays, feed on tiny plankton.n addition to the difference in their skeletons, cartilaginous fish have gills that open to the ocean through slits, rather than the bony covering that is present in bony fish. Different shark species may have different numbers of gill slits.

CARNIVOROUS SHARKS. A carnivorous shark diet usually includes fish, mollusks, and crustaceans. Large species also consume marine mammals such as seals, dolphins, sea lions, and porpoises, as well as large fish species such as tuna, mackerel, and even smaller shark species. Some even extend their consumption to seabirds.

The Megalodon is an extinct species of shark. The largest species of shark to have ever lived is thought to be the Megalodon. This species is now extinct. It is believed to ha â¦ ve existed during the prehistoric era, and has not lived for millions of years. It is thought that this giant shark could measure up to 59 feet long (18 metres).

Not to be confused with whitetip reef shark. The Oceanic whitetip shark (Carcharhinus longimanus), also known as Brown Milbert's sand bar shark, Brown shark, Nigano shark, Oceanic white-tipped whaler, and Silvertip shark, is a large pelagic requiem shark inhabiting tropical and warm temperate seas.he oceanic whitetip shark is a medium-sized requiem shark. The largest specimen ever caught measured 4 m (13 ft), an exceptionally large size considering few specimens are known to exceed a length of 3 m (9.8 ft). The maximum reported weight is 170 kg (370 lb).

Some sharks have stripes or spots on them which are black or even yellow. The zebra shak is white with black spots. The goblin shark is pink and the swell shark is orange with black spots and epalette shark is orange and has one big black spot near the head surrounded by a band of white. Most sharks are a blue/grey color with some white underneath. A few a brown or rust colored. Some sharks have stripes or spots on them which are black or even yellow. <br /><br /> The zebra shak is white with black spots. The goblin shark is pink and the swell shark is orange with black spots and epalette shark is orange and has one big black spot near the head surrounded by a band of white.

There are over 450 different species of shark. We're going to look at a few here and now. We'll look at some of Sharkyjones' cartoon friends and some photos of their real world images. Here we'll talk about some of the different types of shark and their different families.

It is believed that the average size of the megalodon was between 12 metres (39 ft) and 18 metres (59 ft). But the size of a modern female blue whale is over 30 mtrs (115 feet) which makes so far as we know the largest animal that has ever existed. (Until we find fossils of something bigger).So the Megalodon was probably bigger than some smaller whales but not the Blue whale. Also since sharks don't have a bony skeleton this size is an estimation based on the assumption that the size to tooth ratio is the same of present large sharks but this could be in error.hich shark is larger megalodon shark or whale shark? megalodon shark was much bigger than whale shark cause a megalodon shark is almost 100 feet while an whale shark is just 62-75 feet.

Bite Cam offers a seal's eye view of what it's like to be attacked by a great white shark in this clip from 2010's Into the Shark Bite. Bite Cam offers a seal's eye view of what it's like to be attacked by a great white shark in this clip from 2010's Into the Shark Bite. Related Videos. Shark Week. Inside a Great White's Bite.  Inside a Great White's Bite. show more details show less details. Bite Cam offers a seal's eye view of what it's like to be attacked by a great white shark in this clip from 2010's Into the Shark Bite. Bite Cam offers a seal's eye view of what it's like to be attacked by a great white shark in this clip from 2010's Into the Shark Bite.

The whale shark (Rhincodon typus) is a slow-moving filter feeding shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.50 ft) and a weight of approximately 21.5 metric tons (47,000 lb), and unconfirmed reports of considerably larger whale sharks exist.Claims of individuals over 14 m (46 ft) long and weighing at least 30 metric tons (66,000 lb) are not uncommon.he whale shark is the largest non-cetacean animal in the world. The average size of adult whale sharks is estimated at 9.7 m (31.82 ft) and 9 t (20,000 lb). Several specimens over 18m in length have been reported The largest verified specimen was caught on 11 November 1947, near Baba Island, in Karachi, Pakistan.

The powerful rear teeth allow this species to crush shells with ease, digesting the soft innards and regurgitating the hard parts . In contrast to the common perception of most shark species as formidable, dynamic predators, the Galapagos bullhead shark is relatively docile, and a poor swimmer . Despite its protective dorsal fin spines, this species has been known to be consumed by the much larger, notoriously voracious tiger shark .

Now there are a few different types of hammerheads, but the Great Hammerhead is by far the largest of the nine species of this shark. In fact, these hammerheads can grow up to a length of 20 feet (5.5 m), and they can weigh up to 1,000 pounds (450 kg)!The coloration of the Great Hammerhead can range from gray-brown to green on their dorsal sides, and off-white on their ventral sides, and their teeth are extremely jagged and triangular.he most well known factor about them would undoubtedly have to deal with their namesake. These sharks have flat, T-shaped heads that make them stand out from other sharks. Many people are highly intrigued and curious about the shape and benefits of the Hammerhead Sharkâs head.

Some scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age.Like with other species, tiger sharks in captivity do not live as lengthy as in wildlife reaching only 17 to 20 years.hark lifespan vary by kind. Although the majority of types live 20 to 30 years in the wild, there are some kinds that live much longer than others. For example, the spiny dogfish has one of the longest lifespan at more than 100 years, while the blue shark in the wild has an average lifespan of 15-16 years.

Teleosts, the bony fish, are some of the most abundant vertebrates on the planet with nearly 25,000 living species. In contrast, the chondrichthians represent only about 1,100 species of extant species of.In the past, however, the chondrichthians were much more abundant, according to the fossil record. The skull of a shark is made of only 10 cartilaginous elements while a bony fish skull has about 63 bones. 2  Bony fish have pleural ribs formed from dermal bone and sharks lack these ribs. 3  Unlike bony fish that have a protective bony plate covering their vulnerable gills, the gill slits of a shark are exposed and visible.

From Wikipedia, the free encyclopedia. The Spiny dogfish shark (Squalus acanthias), also known as the Spiny dogfish, is one of the most common and well known species of dogfish. It is a small species of shark, with an average length of 28-39 inches (70-100 cm), and reaching a maximum weight of 9.8 kg.piny dogfish have been found in the stomachs of cod, red hake, and goosefish, as well as other Spiny dogfish. Larger species of sharks, as well as seals and Killer whales also feed on the Spiny dogfish. To defend itself, the Spiny dogfish curls into a bow, and strikes at predators with its spines on the dorsal fins.

The Spiny dogfish shark (Squalus acanthias), also known as the Spiny dogfish, is one of the most common and well known species of dogfish.It is a small species of shark, with an average length of 28-39 inches (70-100 cm), and reaching a maximum weight of 9.8 kg.piny dogfish have been found in the stomachs of cod, red hake, and goosefish, as well as other Spiny dogfish. Larger species of sharks, as well as seals and Killer whales also feed on the Spiny dogfish. To defend itself, the Spiny dogfish curls into a bow, and strikes at predators with its spines on the dorsal fins.

176 pages on this wiki. Sharks are a major fauna type encountered in Stranded Deep. During the course of the game, the player will encounter one of three known varieties of sharks: a tiger shark, great white shark or a blacktip reef shark.he shark meat must be cooked before consumption in order to avoid contracting sickness. To cook the raw shark meat, the player must first hack at the shark until it yields the meat before dragging the pieces over a lit fire.

TYPES OF SHARKS. To wrap it up, let's look at some of the types of sharks we've been discussing. ANGEL SHARK: 1  flat body like a stingray -- you can tell the shark is not a ray because the pectoral fins are not attached to the head.2  They bury themselves in the sand or mud with only the eyes and part of the top of the body exposed.NGEL SHARK: 1  flat body like a stingray -- you can tell the shark is not a ray because the pectoral fins are not attached to the head. 2  They bury themselves in the sand or mud with only the eyes and part of the top of the body exposed.

There are 440 different species of sharks in the world today classified into eight different orders described below with some examples of known sharks species for each group.

The red tail shark will be compatible with such fish as gouramis, barbs, danios, rainbows, bala sharks, iridescent sharks, red finned cigar sharks, pictus catfish, swordtails, silver dollars, angels, most loaches and even some types of cichlids.hile the body of this fish is black, the tail of this shark is a striking, bright red. In some cases, the red tail shark's black dorsal and pectoral fins may even be tipped with white. Usually, these white tips will fade as the fish matures, as most of these white tipped red tail sharks are juveniles.

The Parts of Shark Teeth (PDF): Take an in-depth look at the various parts of a shark's tooth and how this information helps scientists to identify sharks. A History of Fossilized Shark Teeth (PDF): Discover how the appearance of fossilized teeth can be different for two sharks of the same type.

The shark in Jaws is a great white shark. - the above is correct, but perhaps not specific enough. When you say the shark in Jaws it implies the shark's character is called Bruce. It was the big model shark they used for some of the film's scenes that had the nickname Bruce around the set. In the movie itself the shark is refered to in different ways...

The shark in Jaws is a great white shark. His nickname is Bruce.. - the above is correct, but perhaps not specific enough. When you say the shark in Jaws it implies the shark's character is called Bruce. It was the big model shark they used for some of the film's scenes that had the nickname Bruce around the set. In the movie itself the shark is refered to in different ways...

SHARK CARTILAGE Overview Information. Shark cartilage (tough elastic tissue that provides support, much as bone does) used for medicine comes primarily from sharks caught in the Pacific Ocean. Several types of extracts are made from shark cartilage including squalamine lactate, AE-941, and U-995.Shark cartilage is most famously used for cancer, including a type of cancer called Kaposiâs sarcoma, that is more common in people with HIV infection.ikely Ineffective for: 1  Cancer. 2  Most research shows that taking shark cartilage by mouth does not benefit people with advanced, previously treated cancers of the breast, colon, lung, prostate, and brain or advanced, previously treated non-Hodgkin's lymphoma.

Facts about Great White Sharks, Tiger Sharks, Bull Sharks, Whale Sharks, Bull Shark, Hammerhead Shark, Mako Shark and more. Sharks are a large group of fish that have inhabited the oceans for over 400 million years, even before dinosaurs populated our planet.

Sharks have five different kinds of fins. 1  Paired pectoral fins lift the shark as it swims. 2  Paired pelvic fins stabilize the shark. 3  One or two dorsal fins also stabilize the shark.  Not all sharks have an anal fin, but 1  it. The caudal or tail fin moves the shark forward.

The primary shark predators of bottlenose dolphins are the bull shark, tiger shark, dusky shark and great white shark. Shark bite scars on dolphins indicate that sharks typically attempt to ambush dolphins from behind and below. Some researchers think that shark attacks may not even be an attempt to eat a dolphin.

There are more than 350 different kinds of sharks, such as the great white and whale sharks. Fossils show that sharks have been around for 420 million years, since the early Silurian. Most sharks are predators, meaning they hunt and eat fish, marine mammals, and other sea creatures. However, the largest shark eats krill, like whales. This is the whale shark, the largest fish in the world.

The shark's nose may work so well because it doesn't have to do anything else. Sharks use their noses just for smelling. Breathing is accomplished with a shark's gills, and the shark's sense of smell is not connected to its mouth in any way. Sharks often don't know how something is going to taste until they've taken a bite. This is how some people are able to escape from a shark attack -- the shark gets a little nibble of a foot and decides to reject the prey. Can sharks hear as well as they smell? Find out on the next page.

Oceanic Whitetip Shark. The oceanic whitetip shark, Carcharhinus longimanus, is a large pelagic shark of tropical and warm temperate seas. It is a stocky shark, most notable for its long, white-tipped, rounded fins.ceanic Whitetip Shark. The oceanic whitetip shark, Carcharhinus longimanus, is a large pelagic shark of tropical and warm temperate seas. It is a stocky shark, most notable for its long, white-tipped, rounded fins.

Whales are much larger than sharks. The blue whale is the largest of all the mammals on Earth. When a whale weighs more than 100 tons, the shark weighs about 2,000 kg. Sharks hunt for their food. Whales do not have this hunting tendency. Plankton and krill are the food of whales.hale vs Shark. Whales are mammals and sharks are fish. When whales give birth to young ones, sharks lay eggs. Unlike the young sharks, young whales are fed milk. The whales raise their young ones whereas sharks do not.

The name bull shark comes from the shark's stocky shape, broad, flat snout, and aggressive, unpredictable behavior. In India, the bull shark may be confused with the Sundarbans or Ganges shark. In Africa, it is also commonly called the Zambezi River shark or just Zambi.he bull shark is a special case in evolutionary history. Some of its closest living relatives do not have the capabilities of osmoregulation. The bull shark's genus, Carcharhinus, is shared by the sand bar shark that is not capable of osmoregulation.

Sharks and remora fish work together. A not so picky eater the remora fish attaches itself the the shark. These fish also attach to whales, tuna, sea turtles and many other large sea animals. The remora fish attaches to the belly of the shark by a sucker disc in it's mouth. It travels everywhere the shark goes. It eats any parasites on the shark which helps keep the shark clean. It also eats any leftover food from the shark. The remora (sucker fish) gets to eat and the shark stays clean and healthy.

A shark tooth is one of the numerous teeth of a shark. A shark tooth contains resistant calcium phosphate materials. Sharks continually shed their teeth; some Carcharhiniformes shed approximately 35,000 teeth in a lifetime, as well as replace them by producing thousands of more. shark tooth is one of the numerous teeth of a shark. A shark tooth contains resistant calcium phosphate materials. Sharks continually shed their teeth; some Carcharhiniformes shed approximately 35,000 teeth in a lifetime, as well as replace them by producing thousands of more.

The oceanic whitetip shark, Carcharhinus longimanus, is a large pelagic shark of tropical and warm temperate seas. It is a stocky shark, most notable for its long, white-tipped, rounded fins. The Oceanic Whitetip Shark is an Aggressive Predator.he oceanic whitetip shark, Carcharhinus longimanus, is a large pelagic shark of tropical and warm temperate seas. It is a stocky shark, most notable for its long, white-tipped, rounded fins. The Oceanic Whitetip Shark is an Aggressive Predator.

A chongo bull is an all out male bull. An aggressive, muscular, roaring to go type of cow. The type of bull that would buck anyone off in a rodeo. bull shark is similar to a bull in the way that it is very aggressive and is one of the most dangerous shark species. What makes this shark so dangerous is that it can toler â¦ ate fresh water and have been found as far north as rivers in New Jersey.

Darkfield Digital Image Gallery Dogfish Shark Placoid Scales Dogfish sharks are small sharks belonging to one of three families: the dogfish shark family, Squalidae; the requiem shark family, Carcharhinidae; and the cat shark family, Scyliorhinidae.he green dogfish, along with several other members of the dogfish shark family, is luminescent. Scales are small plates that form part of the skin of certain animals. They provide protection from the environment and from predators. Sharks have placoid scales, bony, spiny projections with an enamel-like covering.

There are 2 pores on the top of a shark's head called endolymphatic pores, which connect to the shark's inner ear. Sharks have good directional hearing. They are sensitive to low frequencies, and can hear up to a kilometer away. Some sharks feel their prey move around them. They can sense a lot of things. Sharks actually have no external ears. They have internal ears that are also used for balance and equilibrium. There are 2 pores on the top of a shark's head called endolymphatic pores, which connect to the shark's inner ear. Sharks have good directional hearing.

Only recently have we had a glimpse into whale shark reproduction. Like their nurse shark cousins, whale sharks are live bearers. A pregnant female killed in Taiwan was found to have 300 pups inside.It is thought that whale shark babies develop like nurse shark babies inside thin, membranous egg cases which are retained in the mother s uterus.nly recently have we had a glimpse into whale shark reproduction. Like their nurse shark cousins, whale sharks are live bearers. A pregnant female killed in Taiwan was found to have 300 pups inside.

The most noticeable features on the Porbeagle Shark is a white spot or blotch at the base of the first dorsal fin. By the way, to learn more about the different types of fins sharks can have, visit the Shark Anatomy page. The Porbeagle preys mainly on cephalopods and small bony fish.ou can mostly find this shark in the North Atlantic on the coasts of Greenland, Canada, Russia and Scandinavia. Further south, this shark can be spotted near Bermuda, New Jersey, Madeira, Brazil, Chile and Morocco. It has also been sighted in the Mediterranean Sea. The Porbeagle is known to migrate long distances.

Scalloped Hammerhead Shark (Sphyrna lewini) 13.8 feet. 11. Megamouth Shark (Megachasma pelagios) 14.6 feet. 10. Bigeye Thresher Shark (Alopias superciliosus) 15.1 feet. 9. Bluntnose Sixgill Shark (Hexanchus griseus) 15.8 feet. 8. Thresher Shark (Alopias vulpinus) 18 feet. 7. Great Hammerhead Shark (Sphyrna mokarran) 20 feet. 6. Greenland Shark (Somniosus microcephalus) 21 feet. 5. Pacific Sleeper Shark (Somniosus pacificus) 23 feet. 4.

you may be surprised to find out they are pretty speedy in fact i know i couldn t swim faster than this shark i d be lunch checkout our shark fact video for kids to see if you knew the answer to how fast a great white shark swimsthanks for watching be sure to tell us your favorite shark fact in the comments below and we may use it for a animal facts videon fact i know i couldn t swim faster than this shark i d be lunch checkout our shark fact video for kids to see if you knew the answer to how fast a great white shark swims thanks for watching be sure to tell us your favorite shark fact in the comments below and we may use it for a animal facts video

There are four basic types of shark teeth: dense flattened, needle-like, pointed lower with triangular upper, and non-functional. The type of tooth that a shark has depends on its diet and feeding habits. In some geological formations, shark's teeth are a common fossil.he most ancient types of sharks date back to 450 million years ago, during the Late Ordovician period, and are mostly known by their fossilised teeth. However, the most commonly found fossil shark teeth are from the Cenozoic era (the last 66 million years).

Synopsis â. Watch Avalanche Sharks Online Free: Avalanche Sharks tells the story of a bikini contest that turns into a horrifying affair when it is hit by a shark avalanche. (See more...)On Yify TV you can Watch Avalanche Sharks free instantly without waiting. Watch more Scott Wheeler's movies for free on Yify TV.More search tags: Avalanche Sharks.720p.x264.YIFY.mp4, Avalanche Sharks full movie online, download 2013 online movies free on Yify TV.valanche Sharks 3.00 / 5 5 1 / 5 2 / 5 3 / 5 4 / 5 5 / 5 1 vote, 3.00 Rank (70% score). Watch Avalanche Sharks (2013) Online.

The Swai Fish, or Iridescent Shark, is a rather unremarkable fish that is typically farmed in Asia. However, it seems to create a bit of controversy in what contexts it appears. Whether it is to be kept in an aquarium or to be eaten at the dinner table, the Swai Fish has opposing viewpoints. The Iridescent Shark is not really a shark but gets its name because it resembles on in appearance. It can be found on the market as Swai Fish and shark catfish. It is a member of the catfish family. As a juvenile, the Swai Fish radiates a glow from the edges of its fins, thus given the name Iridescent Shark. It can grow up to four feet in length and weigh up to nearly 100 pounds. They are omnivores and will eat other fish, crustaceans, and different types of water plants.

OK if someone tells you how many sharks are in the world they are lying. Oceans+Seas are twice larger than the landmass on this planet and most of it is still unknown to man. So there is no way in hell that anyone could know how many sharks are in the water. @@@@. If you mean how many different species of shark then:

Life Cycle of Sharks. Sharks have been the most feared and wild marine creatures. These animals have been prowling in the oceans for around 400 million years and have evolved into 440 different species. Sharks are known to live for many years.

It hunts alone in the darkness of the night sea. Black-tipped sharks and white-tipped sharks are smaller and therefore take smaller prey than tiger sharks. The feed on small fishes at the edges of reef and in shallow waters. Not all sharks that inhabit the Great Barrier Reef are top carnivores.Whale sharks, the largest of all fish in the sea, reach 15 meters in length and grow to weights up to 15 metric tons. But their diet consists of plankton, crustaceans and small fish. Sharks are not the only predators of the reef though.he feed on small fishes at the edges of reef and in shallow waters. Not all sharks that inhabit the Great Barrier Reef are top carnivores. Whale sharks, the largest of all fish in the sea, reach 15 meters in length and grow to weights up to 15 metric tons.

What do sharks eat? With so many species, sharks have evolved to an extent that will literally eat anything that moves. Their eating habits vary widely and depend on their habitat, and the variety of food and prey that is available therein. Sharks also adapt quickly when they find themselves in different habitats and situations.

The genus of a shark depends on the species of shark. Sharks are part of the Kingdom: Animalia, Phylum: Chordata and Class: Chondrichthyes. It depends on the specific shark. T â¦ here is no single genus.

Are There Freshwater sharks? Whether true freshwater sharks exist or not is still somewhat of an open question. There is no doubt that there are sharks that live in freshwater, but most of these species are really marine sharks that are able to migrate up into freshwater and live out their entire lives there.

Depending on the species, sharks either lay eggs or give birth to live young. Sharks that lay eggs are oviparous, and sharks that give birth to live young are viviparous. Viviparous sharks are...

Of all shark species, the great white shark is responsible for by far the largest number of recorded shark attacks on humans, with 272 documented unprovoked attacks on humans in which the great white shark was identified as of 2012.

The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide.

Each species of shark has a unique tail design. This has to do with the overall size of the shark as well as what the purpose of the tail is. In many instances the tail allows the shark to move very fast in the water. Other times it is to help balance the movements of the shark so that they can glide along gracefully.

Genuine shark fin soup or stew is made with shark fins obtained from any of a variety of shark species. Raw shark fins are processed by first removing the skin and denticles, then trimming them to shape and bleaching to a more desirable colour.

REAL FACTS ABOUT THE SHARK ATTACKS. Of the more than 350 known shark species, only 4 are particularly prone to attack people: the bull shark (which is considered by many experts to be the most dangerous to humans); the great white; the tiger shark; and the hammerhead.

Tiger shark Facts. Tiger shark is one of the largest species of sharks on the planet. This animal can be found in the warm, tropical and subtropical waters all over the world. Largest population of tiger sharks lives in Melanesia, Micronesia and Polynesia.

Mandalay Bay Shark Reef description. At more than 105,000 square feet, Shark Reef is home to more than 1,200 different species of sharks, tropical and fresh water fish, reptiles, marine invertebrates and rays totaling about 2,000 animals among 2 million gallons of seawater.

How Bull Sharks Can Live in Both Ocean and Fresh Water. Although there are a handful of species that live in freshwater, we tend to think of sharks as being ocean dwellers. But there is also a very unique shark that can live in both ocean and fresh water estuaries and lakes: the Bull Shark.

By Amelia Meyer. Each shark species has its own expected life span and it is difficult to set an average for sharks as a whole. However, very broadly speaking, most sharks live for between 20 and 30 years. The Spiny Dogfish lives for over a century, and some Whale Sharks have been known to do the same.

THE TIGER SHARK. The tiger shark is one of the largest shark species which has been known to reach lengths of around 18 feet(six metres) in the past. This, however, is a rare occurrence and the more common sizes are ten to 14ft, with the female tiger shark larger than the male.

The only living member of the Cetorhinidae family, basking sharks fall within the same shark order as great whites. This ancient order is called mackerel sharks, or Lamniformes, and includes a wide range of species from megamouths to makos, and threshers to goblin sharks.

While the meat of some sharks and rays, such as makos, dogfish and skate, is sold for human consumption, the meat of most species of sharks and rays is not eaten in the developed world. Shark meat may be sold under the name of the shark from which it came (for example, blackened mako) but it is often disguised.

Sharks have been around for over hundreds of millions of years. While many of us may be familiar with a few shark species, there are over 400 of them, from the 8-inch-long dwarf lanternshark to the 40-foot-long whale shark. Sharks are efficient predators with a highly developed sense of smell, hearing and sight.

Life Cycle. Every shark species has its own expected life span and so it is wrong to set an average for sharks as a whole. However, very broadly speaking, we can say that most sharks live for between 20 and 40 years. The Spiny Dogfish lives for over a century, and Whale Sharks are expected to be similar.

Many sharks can live for about 20 to 30 years, with some species are known to live a fairly longer life. The lifespans of large sharks are greater than that of the smaller sharks. Great white shark reaches its maturity at the age of 15 and it has the lifespan of 25 to 30 years.

Bull sharks in Florida have been found to have levels of pharmaceuticals that are disposed of through waste water discharge. But the effects of pollution are not just liited to the shark species that hang around developed areas. The Greenland shark is a deep water shark that likes remote locations of the colder seas.

For the novel, see White Shark (novel). The great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans.

The shortfin mako shark, I. oxyrinchus, is the better known of the two makos. The longfin mako shark, I. paucus, closely resembles the shortfin mako, and the two species swim in many of the same waters. The shortfin mako shark is likely the fastest swimmer of all sharks and one of the swiftest of all fishes.

There are over 470 species of sharks and they have been living on Planet Earth for 420 million years. The smallest shark-the dwarf lantern shark-is only 17 centimeters (6.7 inches) in length, while the whale shark is the largest specie in the world, with approximately 12 meters (39 feet).

Tiger shark is one of the largest species of sharks on the planet. This animal can be found in the warm, tropical and subtropical waters all over the world. Largest population of tiger sharks lives in Melanesia, Micronesia and Polynesia. Tiger sharks normally spends majority of their time in the deep water.

See Content In. Sharks on the Shelf: Shark Products. Sharks are killed for many reasons: for sport, as targets of intensive commercial fisheries, and as accidental bycatch of fisheries that target other large fish such as swordfish and tuna. A variety of species of rays, which are related to sharks, are also caught by commercial fisheries.

Shark Limits and Identification. 1  Daily Bag Limit. 2  Atlantic Sharpnose, Blacktip and Bonnethead Sharks Atlantic Sharpnose. Blacktip. Bonnethead. 3  Hammerhead Sharks (Smooth, Great, Scalloped) 4  Other Allowable Shark Species. 5  More Information.

Answer: Some shark species are going extinct because excessive human fishing. Sharks have been around for millions of years and now after all this time, over fishing is making smaller some shark species. Links to other pages in this site.

The whale shark is one of the largest of all the shark species. In fact, it is the largest fish in the world, growing to a length of over 40 feet. In spite of its huge size, however, the whale shark is completely harmless. This shark uses special organs in its gill bars to filter microscopic plankton from the water.

The Whitetip Reef Shark is also known as the Triaenodon Obesus. Along with the Blacktip Reef Shark and Gray Reef Shark, it is one of the most frequent sharks in the Indo-Pacific. This species is easily spotted due to its curious, irregular, and waving swimming style and of course, the white tip on its dorsal fin.

Hammerhead shark. The hammerhead sharks are a group of sharks in the family Sphyrnidae, so named for the unusual and distinctive structure of their heads, which are flattened and laterally extended into a hammer shape called a cephalofoil. Most hammerhead species are placed in the genus Sphyrna while the winghead shark is placed in its own genus, Eusphyra.

The number of teeth a shark has depends on the species of shark. For example, the great white shark has about 50 teeth in its mouth. But the amazing thing about sharks is that they can replace damaged and lost teeth very easily. Below the teeth they have in their mouths, there are several rows of new teeth waiting to replace the old ones.

Not all species of sharks are great targets for fishing - a great white shark may not be something you would want to bring up to your boat - but there are several favorite species out there for recreational anglers. This section will look more closely at some of the most popular sharks that anglers target.

Whale Shark Populations in the Gulf of Mexico. A whale shark swimming and feeding at surface during a June 2010 feeding aggregation at Ewing Bank. Photograph by Eric Hoffmayer. About the Project. The Gulf of Mexico is an essential habitat for many shark and ray species, including the whale shark (Rhincodon typus).

Mako shark. Mako shark (genus Isurus), any of two species of swift, active, potentially dangerous sharks of the mackerel shark family, Isuridae. The shortfin mako (Isurus oxyrinchus) is found in all tropical and temperate seas, and the longfin mako (I. paucus) is scattered worldwide in tropical seas.

Sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi) of only 18 cm (7 in) in length, to sharks which reach over 12 m (40 ft) in length. The biggest sharks are the largest fish in the world. Great White Shark (Carcharodon carcharias).

C Length 8 in.-40 ft. Sharks have been around for over hundreds of millions of years. While many of us may be familiar with a few shark species, there are over 400 of them, from the 8-inch-long dwarf lanternshark to the 40-foot-long whale shark. Sharks are efficient predators with a highly developed sense of smell, hearing and sight.

Whale shark. (Redirected from Whale sharks) The whale shark (Rhincodon typus) is a slow-moving filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.5 ft) and a weight of about 21.5 t (47,000 lb).

How long does it take for a salt water shark egg to hatch?   Well, the length of time for an egg to hatch depends on the species of shark. At my aquarium store, we had a banded shark egg hatch after four months and four days in ou â¦ r store. I have no experience with marbled cat shark eggs.

Most sharks bear live young (viviparity), others lay eggs. Several shark species mate the entire year, others prefer certain seasons and regions. The females of some shark species bear young each year, others stop reproducing at irregular intervals which can last several years.

Do sharks attack other sharks? No they don't attack each other.They are in a whole family.If they do attack each other,that means they are not friends or a member from the family. Incorrect, there are sharkâ¦s that attack other sharks, whether within a species or between species, it does happen. 2 people found this useful.

Myths and Truths About Sharks. Despite what media and movies may lead us to believe, sharks are not man eaters out to get us. Rather, they are widely diverse with more than 350 species ranging greatly in size, habitats and diet. Shark attacks are few and far between with very few species involved.

The sharks were victorious. The sharks were inventors of many things such as the flying potato, electric guitar, the planet Mercury, Little Debby and pencils. Sharks were also the first species to find life on other planets in which they destroyed those species in a very laz-arey way with disco music.

Interesting Hammerhead shark Facts: 1  Size of the hammerhead shark depends on the species. They can reach 3 to 20 feet in length and up to 1000 pounds in weight. 2  Hammerhead sharks have white bellies and olive green or grey-brownish back. 3  Mouth of hammerhead sharks is located on the underside of the head.

It is therefore not too difficult to see which species poses the greater threat to the other. After 400 million years of shark evolution, we could potentially wipe out the world's sharks in a century's time. The fact remains, however, that sharks can, and do, result in human deaths. Dogs and even traditionally mild-mannered animals like cows may kill people too, but the nature of shark attacks seems to fascinate and terrify us more.

Responding to a query about the smallest species of extant shark, I wrote: As in humans, all shark species probably produce the occasional giant or dwarf. Because of their spectacular nature, tales  often unsubstantiated  of giant sharks grace the oral tradition of virtually every maritime community.

Below, you can learn about the largest species in the two main groups of fish. Answer: The largest fish in the world is a shark - the whale shark (Rhincodon typus). The whale shark can grow to about 65 feet long and weigh up to 75,000 pounds. Imagine encountering this huge animal in the wild! Despite its huge size, though, whale sharks are pretty gentle.

Juveniles are subject to predation by larger fishes and sharks. One juvenile was found in the stomach of a blue shark and another in the stomach of a blue marlin. Orcas have also been mentioned as predators of juvenile whale sharks. By far, the most serious threat to this species is from humans. The meat of the whale shark is considered a delicacy in Taiwan. It is marketed fresh, salted, and smoked and sells for very high prices.

Some recreational shark fishermen do practice catch and kill techniques just for fishing records or to obtain jaws or mounts as trophies. Despite the fact that most sport fishermen are responsible stewards of the sea, some fishermen do heavily target sharks and may have a significant impact on some species, such as bull sharks (Casey and Hoey 1985) and blue sharks (Campana et al. 2006).

The triangular dorsal fin atop the shark helps the shark with balance. Most species have two dorsal fins but some only have one. The tail fin of sharks is called the caudal fin is considered heterocercal, meaning the top and bottom lobes are not symmetrical and the vertebral column extends upwards into the top lobe. Sharks move their caudal fins side to side to propel themselves forward.

Along with the Blacktip Reef Shark and Gray Reef Shark, it is one of the most frequent sharks in the Indo-Pacific. This species is easily spotted due to its curious, irregular, and waving swimming style and of course, the white tip on its dorsal fin. This amazing fish is a very slim species.

How long have sharks been in existence? A: Geological records show that modern shark species have existed for between 201 million and 174 million years. Earlier fish species similar to sharks existed as early as between 419 million and 359 million years ago.

The whale shark is the largest shark species, and also the biggest fish species in the world. Whale sharks can grow to 65 feet in length and up to about 75,000 pounds in weight.Their back is gray, blue or brown in color and covered with regularly-arranged light spots.

Megalodon's Closest Living Relative is the Great White Shark. A Great White Shark having its lunch (Wikimedia Commons). Technically, Megalodon is known as Carcharodon megalodon --meaning it's a species (Megalodon) of a larger shark genus (Carcharodon). Also technically, the modern Great White Shark is known as Carcharodon carcharias, meaning it belongs to the same genus as Megalodon.

Not all types of sharks do, but during a feeding frenzy  this could happen, and some bigger sharks like bull sharks and  great white sharks prey on smaller sharksâ¦.   Great hammerhead sharks are known to be cannibalistic.    Sharks will eat pretty much anything they can sink their teeth  into.

parts of sharks that fossilize - types of shark fossils Introduction to Shark Fossils Because sharks are made of cartilage and not bone, it's a common misconception that teeth are the only parts that fossilize. Although shark teeth are by far the most common fossils, many other parts of sharks fossilize.

According to the International Union for the Conservation of Nature Shark Specialist Group, 28 percent of shark species are at risk of extinction. An estimated 100 million sharks are killed annually, Worm and other researchers estimate, 20 million or more per every fatal shark attack. And that wholesale slaughter could already be sending dire consequences cascading down the food chain, much to the bane of scallop and lobster lovers.

How much do great white sharks weigh? The white shark can weigh over 5,000 pounds, in some cases. A 16  footer weighed 3,444 pounds when harpooned off Australia, and  longer white sharks have been seen.   Grâ¦eat Whites are one of the largest species of Sharks known to Man.  Adults great whites are on an average between 4 to 5 meters (13 to  17 feet) in length.

Overview â The distinctive tiger shark lives in both coastal and open seawaters, usually from the surface to around 459 feet. Young members of this species sport black stripes arranged over their otherwise gray backs and sides. These stripes can fade as the shark ages, making it look more like a great white than a tiger shark. Somehow it seems appropriate that this nocturnal, aggressive shark prefers dark, murky waters.

Most hammerhead species are placed in the genus Sphyrna while the winghead shark is placed in its own genus, Eusphyra. Many not necessarily mutually exclusive functions have been proposed for the cephalofoil, including sensory reception, maneuvering, and prey manipulation.ammerhead sharks are known to eat a large range of prey including fish, squid, octopus, crustaceans, and other sharks. Stingrays are a particular favorite. These sharks are often found swimming along the bottom of the ocean, stalking their prey.

Sandbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age. While, Sminkey (1996) mention that sandbar sharks can live to be more than 30 years old. The age of silky or Blackspot sharks can be established by counting the quantity of growth rings that develop on their vertebrae as with other species, with each ring standing for around one year of life.

How much do great white sharks weigh? The white shark can weigh over 5,000 pounds, in some cases. A 16 footer weighed 3,444 pounds when harpooned off Australia, and longer white sharks have been seen. Gr â¦ eat Whites are one of the largest species of Sharks known to Man. Adults great whites are on an average between 4 to 5 meters (13 to 17 feet) in length.

Sharks' blood gives them turbo speed. Several species of shark and tuna have something special going on inside their bodies. For a long time, scientists have known that some fish species appear warm-blooded. Salmon sharks can elevate their body temperatures by up to 20 degrees compared to the surrounding water, for example.

Habitat and biology. The Grey Nurse Shark (Carcharias taurus) also known as the sand tiger shark or spotted ragged-tooth shark, is one of four species belonging to the family Odontaspididae. The species has a large, rather stout body and is coloured grey to grey-brown dorsally, with a paler off white under belly.

Popular Sharks for Marine Hobbyists and Public Aquariums. Marine hobbyists and public aquariums have spent years attempting to find the right shark to fit their specific needs; and a wide variety of shark species (some 200) have been kept in captivity. However, only about a dozen species are currently kept successfully in captivity.

Sand Tiger Shark Profile. Sand sharks, also known as sand tigers and gray nurse sharks, have a deceivingly ferocious look. They are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the mouth is shut. Despite this, they are a docile, non-aggressive species, known to attack humans only when bothered first. Sand sharks are brownish-gray with rust-colored spots on top and white underneath.

Best Answer: Leopard, soupfin, and blacktip are probably the most common sharks to be harvested for food. I would say that the leopard and the nurse sharks are probably the best tasting based on diet and location. I haven't had thresher or mako or any of the larger species. The best are sharks in their middle years of life. The older sharks are too tough and tend to have tighter, harder meat. The younger ones have little to no meat, and although tender enough, they don't offer much.

Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour. Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured. The Blue Shark (Prionace glauca) is an open ocean glider, planing on wing-like pectoral fins and flattened belly.

Maaya Thila, Maldives. Home to hammerhead sharks, reef sharks, and white tips that circle the dive site in large groups, Maaya Thila is one of the best spots in the world to swim alongside whale sharks. The largest species of fish, a whale shark can grow to be 46 feet long and weigh up to 15 tons. Hopefully you've practiced with Dory and brushed up on speaking whale...

Sharks do not normally hunt humans. When they do attack a human, it is usually a case of mistaken identity. Shark sometimes mistake humans for its natural prey, such as fish or a marine mammal or sea turtle, and most often will release the person after the first bite. The majority of shark bites are hit-and-run attacks by smaller species, such as blacktip and spinner sharks. They mistake thrashing arms or dangling feet as prey, dart in, bite, and let go when they realize it's not a fish.

Many frilled sharks are found with the tips of their tails missing, probably from predatory attacks by other shark species. Parasites identified from this shark include a tapeworm in the genus Monorygma, the fluke Otodistomum veliporum, and the nematode Mooleptus rabuka.he gestation period may be as long as three and a half years, the longest of any vertebrate. Litter sizes vary from two to fifteen, and there is no distinct breeding season. Frilled sharks are occasional bycatch in commercial fisheries, but have little economic value.

Rating Newest Oldest. Best Answer: Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour. Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured. The Blue Shark (Prionace glauca) is an open ocean glider, planing on wing-like pectoral fins and flattened belly.

With that being said, it may come to surprise that the whale shark is the largest known fish species to roam the Earth at this present time. The average whale shark weight is about 20.6 tons, which is a monstrous size considering what this animal eats on a regular basis. They are also about 18 to 32 feet in length, comparing to the size of our school buses! So how do these whale sharks get so big? What Makes Whale Sharks So Big? It seems that scientists may have figured out the reasoning behind the whale sharkâs weight.

Like all other members of the Carcharhinidae family, bull sharks are born alive (viviparous) and the litter may include 1-3 pups. Pregnancy lasts 10 to 11 months. Males reach sexual maturity between 14 and 15 years, females only at about age 18. Although bull sharks do not rear their young like most other shark species, they bear their young in protected coastal areas. It follows that most young bull sharks are found in the flat, coastal regions around the world.

Several extinct species are known from fossils found in sediments from Cretaceous to Quaternary (age range: 99.7 to 0.781 million years ago). The family Lamnidae also includes the great white shark and the porbeagle. Mako sharks are capable of swimming at speeds up to 60 km/h (37 mph), and jumping up to 7 m (23 ft) into the air. The great white shark is also closely related to an ancient mako shark, Isurus hastalis.

Share. The Oceanic Whitetip Shark is one of the most widely ranging sharks, common throughout the warm latitudes of all oceans. It lives in the open ocean, where it is a predator at the top of pelagic food webs.This species gets its common name from the white tips of its dorsal, pectoral, and tail fins.hare. The Oceanic Whitetip Shark is one of the most widely ranging sharks, common throughout the warm latitudes of all oceans. It lives in the open ocean, where it is a predator at the top of pelagic food webs.

Paradoxically, the two largest species of shark, that make also the largest fish species, are harmless for people, being plankton feeders, like the whales: the whale shark (Rhincodon typus) (up to 20 m (66 ft) long and 34 tonnes in weight), basking shark (Cetorhinus maximus) (up to 9.8 m (33 ft) long and 4 tonnes).

Any shark looks huge when you're not expecting to meet one, even the more modestly sized nurse shark. While some claim to have seen nurse sharks up to 14 feet (4.3 meters) long, marine biologists who have actually put a measuring tape against the species cite more conservative lengths [source: Castro]. What scientists do agree on is that the female is always slightly larger than the male of the species.

What the great white sharks represent to mankind, Orcinus orca, better known as the super-shiny killer whale, is to great white sharks a hundredfold. It's not necessarily true that killer whales hunt great whites for food -- scientists actually aren't sure what the relationship is between the two species. What we know is that the whales are smart enough to have figured out that sharks need to move in order to breathe, so they hold the sharks upside down until they are immobilized, slowly suffocating, until they're dead.

Adult dusky sharks have a broad and varied diet, consisting mostly of bony fishes, sharks and rays, and cephalopods, but also occasionally crustaceans, sea stars, bryozoans, sea turtles, marine mammals, carrion, and garbage.ecause of its slow reproductive rate, the dusky shark is very vulnerable to human-caused population depletion. This species is highly valued by commercial fisheries for its fins, used in shark fin soup, and for its meat, skin, and liver oil. It is also esteemed by recreational fishers.

Research shows that sharks are capable of responding to one part blood for every 10 billion parts water, essentially a tea spoon of blood in a swimming pool; but, not probably not an Olympic sized swimming pool. Sharks can smell 10,000x better than humans. But, according to LiveScience (Shark Smell Myth Found Fishy ) and Floridian researchers, the smelling capacity of sharks based on the volume of blood and/or amino acids in a volume of water does not greatly exceed that of other fish species.

A bull shark is similar to a bull in the way that it is very aggressive and is one of the most dangerous shark species. What makes this shark so dangerous is that it can toler â¦ ate fresh water and have been found as far north as rivers in New Jersey. 8 people found this useful. Answered. In Saltwater Fish.onfidence votes 28. The Bull Shark is found in tropical and subtropical seas around the world, and prefers warm waters. It also lives very close inshore, and often enters fresh water for long periods.

Blast from the Past: Living Fossils. When the goblin shark species was first discovered off the coast of Japan in 1898, it set off a case of scientific deja dÃ©jÃ . Vu researchers realized that they had seen goblin sharks -- before not swimming in the, seas but in fossil. remainshe last goblin shark sighting occurred in 2007 in Tokyo Bay, Japan [source: Mehta ]. After one day in captivity, the living fossil fish died. Since opportunities like that one are few and far between, it may be a long time before we decode all the mysteries of the goblin shark.

In captivity, whale sharks are not quite happy as in few cases they have died within days, but at most they have reached only 8 years. Some scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age. Like with other species, tiger sharks in captivity do not live as lengthy as in wildlife reaching only 17 to 20 years.

The spiny dogfish is one of the most abundant species of shark in the world is also commonly known as the piked dogfish, the codshark and the thorndog.he spiny dogfish is a small-sized shark with a grey coloured body that has a light underside and little white spots on the back of the spiny dogfish. The spiny dogfish also has large eyes and a short snout and unlike many other species of shark, the spiny dogfish does has have an anal fin.

The frilled sharks off southern Africa were described as a different species, C. africana, in 2009. The frilled shark inhabits the outer continental shelf and upper to middle continental slope, seeming to favor upwellings and other biologically productive areas.he gestation period may be as long as three and a half years, the longest of any vertebrate. Litter sizes vary from two to fifteen, and there is no distinct breeding season. Frilled sharks are occasional bycatch in commercial fisheries, but have little economic value.

Most blacktip reef sharks are found over reef ledges and sandy flats, though they have also been known to enter brackish and freshwater environments. This species typically attains a length of 1.6 m (5.2 ft).his shark is used for its meat, fins, and liver oil, but is not considered to be a commercially significant species. The International Union for Conservation of Nature has assessed the blacktip reef shark as Near Threatened.

The blacktip shark (Carcharhinus limbatus) is a species of requiem shark, and part of the family Carcharhinidae. It is common to coastal tropical and subtropical waters around the world, including brackish habitats.ormally wary of humans, blacktip sharks can become aggressive in the presence of food and have been responsible for a number of attacks on people. This species is of importance to both commercial and recreational fisheries across many parts of its range, with its meat, skin, fins, and liver oil used.

The tiger shark (Galeocerdo cuvier) is a species of requiem shark and the only extant member of the genus Galeocerdo. Commonly known as the Sea Tiger, the tiger shark is a relatively large macropredator, capable of attaining a length over 5 m (16 ft).It is found in many tropical and temperate waters, and it is especially common around central Pacific islands.ommonly known as the Sea Tiger, the tiger shark is a relatively large macropredator, capable of attaining a length over 5 m (16 ft).

The Class Osteichthyes consists of the bony fishes and is the largest class of vertebrates, with over 24,000 species. These fishes have a skeleton much stiffer than that of the cartilaginous fish (sharks).Bony fish have an excellent sense of smell, like sharks and rays, but their sense of vision is also excellent.he Class Osteichthyes consists of the bony fishes and is the largest class of vertebrates, with over 24,000 species. These fishes have a skeleton much stiffer than that of the cartilaginous fish (sharks).

July 27, 2012 by Bob Yirka report. (Phys.org) -- German researchers studying shark teeth have found at least two species that have fluorinated calcium phosphate-mineral fluoroapatite, as a main component, one of the main ingredients in toothpaste, which partly explains why sharks dont ever get cavities.ole rat dental structure similar to a shark. (PhysOrg.com) -- Sharks are capable of continually growing new teeth. As the teeth age, they fall out and new ones move forward similar to that of a tooth conveyor belt.

The last recorded capture of the species was in the 1930s at Lakes Entrance in the state of Victoria, Australian public broadcaster ABC reported. Museum Victoria said in a statement it was only the third time a shark like this has been seen in the region in more than 160 years. As the second biggest fish species in the world after the whale shark, the basking shark got its name for its gentle, slow-moving nature and preference for warmer waters. Adults can grow to be 12 meters long.

Best Answer: Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour.Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured.f, as Thorburn and Bhana attest, the shark did indeed start from a standstill-which seems behaviorally unlikely-to cover the stated distance in the stated time, the little Mako must have achieved an acceleration of at least 50 feet (15 metres) per second, per second.

Shark species have eyelids and some can even protect their eye with a tough third eyelid called a nictating membrane. Other species, like the great white shark, have muscles that can roll the eye back into the socket for protection. Bony fish lack eyelids or the ability to protect their eyes.lthough the two groups once shared a common ancestor, there are several major biological differences between them. Teleosts, the bony fish, are some of the most abundant vertebrates on the planet with nearly 25,000 living species. In contrast, the chondrichthians represent only about 1,100 species of extant species of.

Most blacktip reef sharks are found over reef ledges and sandy flats, though they have also been known to enter brackish and freshwater environments. This species typically attains a length of 1.6 m (5.2 ft). tracking study off Palmyra Atoll in the central Pacific has found the blacktip reef shark has a home range of around 0.55 km 2 (0.21 sq mi), among the smallest of any shark species. The size and location of the range does not change with time of day.

While bull sharks are commonly found along coastlines, bays, and harbors, they also frequent a most uncommon shark habitatâfreshwater rivers. The species has been spotted 2,500 miles (4,000 kilometers) up the Amazon River in South America and dwell in Lake Nicaragua, a freshwater lake in Central America. Bull sharks have traveled up the Mississippi River as far north as Illinois and are regularly spotted in India's Ganges. Their ability to tolerate freshwater is rooted in salt retention. Sharks must retain salt inside their bodies. Without it, their cells will rupture and cause bloating and death.

It is a nomadic animal which is often found close to the coast, guided by warmer currents in deep waters. In the past, tiger sharks have been found across the western Pacific Ocean, from Japan to New Zealand, as well as the Caribbean Sea, the Gulf of Mexico and South America.It has also been spotted off the coast of Africa, China, India and Indonesia.he tiger shark is one of the largest shark species which has been known to reach lengths of around 18 feet(six metres) in the past. This, however, is a rare occurrence and the more common sizes are ten to 14ft, with the female tiger shark larger than the male.

The thresher shark has a short head and a cone-shaped nose. The mouth is generally small, and the teeth range in size from small to large. By far the largest of the three species is the common thresher, Alopias vulpinus, which may reach a length of 6.1 metres (20 ft) and a weight of over 500 kilograms (1,100 lb).s a result, the long-tailed or common thresher shark, Alopias vulpinus, is also known as the fox shark. The common name is derived from a distinctive, thresher-like tail or caudal fin which can be as long as the body of the shark itself.

The tiger shark (Galeocerdo cuvier) is a species of requiem shark and the only extant member of the genus Galeocerdo. Commonly known as the Sea Tiger, the tiger shark is a relatively large macropredator, capable of attaining a length over 5 m (16 ft).It is found in many tropical and temperate waters, and it is especially common around central Pacific islands.ommonly known as the Sea Tiger, the tiger shark is a relatively large macropredator, capable of attaining a length over 5 m (16 ft). It is found in many tropical and temperate waters, and it is especially common around central Pacific islands.

Where Do Thresher Sharks Live. Thresher sharks are pelagic fish as they are often found in a depth of about 500 meters (1,600 feet); they seldom dive deep in the shallow waters. Common threshers are often found in continental shelves of Asia, North America, and North Pacific. These shark species are active predators. 2  They have small mouth and large eyes. 3  Common thresher is by far the largest thresher with a length of about 6.1 meters (20 feet). 4  The weight of these sharks is around 500 kg (1,100 lb). 5  The length of bigeye thresher measure around 4.9 meters (16 feet).

The spiny dogfish is a small-sized shark with a grey coloured body that has a light underside and little white spots on the back of the spiny dogfish. The spiny dogfish also has large eyes and a short snout and unlike many other species of shark, the spiny dogfish does has have an anal fin.The most distinctive feature of the spiny dogfish are the two spikes found on the back of the spiny dogfish, one spike in front of each dorsal fin.he spiny dogfish also has large eyes and a short snout and unlike many other species of shark, the spiny dogfish does has have an anal fin.

Tiger Shark â Galeocerdo cuvier. Tiger sharks are very large and so they require a considerable amount of wide open space. They enjoy warm water so they are found in the tropic areas of the world as well as some sub tropic locations.ating Habits of Tiger Sharks. A tiger shark will eat any type of fish, shark, animal, and small entity it can find in the water. They are very curious by nature and will taste anything that comes their way. The stomachs of tiger sharks have been found with some very unique items inside of them.

A shark tooth is one of the numerous teeth of a shark. A shark tooth contains resistant calcium phosphate materials. Sharks continually shed their teeth; some Carcharhiniformes shed approximately 35,000 teeth in a lifetime, as well as replace them by producing thousands of more.he most ancient types of sharks date back to 450 million years ago, during the Late Ordovician period, and are mostly known by their fossilised teeth. However, the most commonly found fossil shark teeth are from the Cenozoic era (the last 66 million years).

The Oceanic whitetip shark is easy to distinguish. It has a large, rounded first dorsal fin, and very long, wide, paddle-like pectoral fins. The first dorsal fin is very large with a rounded tip, and is just infront of the pectoral fins.The second dorsal fin is located over, or slightly infront of, the anal fin.he Oceanic whitetip reef shark reaches a maximum length of 4 metres, and can weigh as much as 170 kg (370 pounds). This species of shark can be distinguished among other species by its large, rounded first dorsal fin, and its very long, wide, paddle-like pectoral fins.

It's alot faster than 1 mph, a human swims 2-5 mph average. It depends on what kind of shark, but the mako can get up to 45-50 mph in short bursts. When a shark is hitting prey from underneath they can reach up to 30mph. The type of shark they are asking for is clearly a Great White Shark. It's alot faster than 1 mph, a human swims 2-5 mph average. It depends on what kind of shark, but the mako can get up to 45-50 mph in short bursts. When a shark is hitting prey from underneath they can reach up to 30mph.

A whale shark is a shark, the largest living fish in the world,  yet it is a filter feeder.   Even though it doesnt have the same diet as a shark, it is a shark.   â¦ its a shark but is named a whale shark for its large stature and  feeding    It's a shark.

How big can great white sharks mouth open? Is Whale Shark a whale or a shark? A whale shark is a shark, the largest living fish in the world,  yet it is a filter feeder.   Even though it doesnt have the same diet as a shark, it is a shark.

Off the Atlantic coast of theUnited States bull sharks are found from Massachusetts (rare north of Delaware) to the Gulf of Mexico and are common off southeastern Florida and in the Gulf of Mexico. Off the Pacific coast bull sharks are found from southern California (rare) to the Gulf of California.Habitat:This species can be found primarily in shallow coastal waters and is common in lagoons, bays, and river mouths.ff the Pacific coast bull sharks are found from southern California (rare) to the Gulf of California. Habitat: This species can be found primarily in shallow coastal waters and is common in lagoons, bays, and river mouths.

Sandbar sharks or Brown sharks are thought to live between 20 and 30 years. Investigation made by Joung (2004) found to be about 20 years of age. While, Sminkey (1996) mention that sandbar sharks can live to be more than 30 years old.he typical life expectancy in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Whale sharks (Rhincodon typus) are also believed to live above 100 years, suggesting that the time to reach maturity is longer and young will take longer to born, making this type of shark more vulnerable.

The Tiger Shark is a type of shark encountered in Stranded Deep. They can be found living in shallow ocean biomes such as the Islands, Sand Plains and Shallows. Tiger sharks can be identified by their dull gray coloration, along with their distinctive stripes that run down the length of their body. A tiger shark can be killed with exactly 10 hits from an axe. 2  As of v0.03.H2, the spawn chance of a tiger shark has been adjusted from 100% down to 30%. 3  There is a bug currently located in the game: once a tiger shark latches onto the player, it will drag the player back to the island.

For Hammerhead sharks, their life expectancy ranges from 20 to 30 years. Brown sharks and sandbar sharks are thought to live between 25 to 30 years. A research conducted in 2004 by joung identified that the lifespan of brown sharks is about 25 years while sandbar sharks can live up to 30 years.heir lifespan vary by kind. Even though most of them live about 20 to 30 years in the wild, there are some types that live longer than others. For instance, the dogfish has one of the longest lifespan of more than 100 years while blue shark has an average lifespan of about 15-16 years in the wild.

What kinds of sharks eat Basking sharks? Cookie cuter sharks will take a bite out of one, and carnivorous sharks will feed on its carcass, and most of the times other sharks will leave it alone because of its size, bâ¦ut I suppose a group of blue sharks may try to attack the basking sharks.

Answer   The gestation period, or pregnancy can vary between species, ranging from from 16 days for the Syrian hamster, and up to to 30 days for species of the Dwarf hams â¦ ter.     16 to 30 days.This has happened to me before my hamster is a boy but it spent the night with my friends female and it took about two weeks until the female had babies i'm sure about this... its exactly 16 days!   The gestation period for hamsters ranges from 16 to 21 days.he gestation period of a shark can be as long as two years. The gestation period can be up to almost two years long (the spiny dogfish shark may have the longest shark gesta â¦ tion period).

Sharks sometimes mistake other sharks as prey and eat them. Yes a great white shark will try to eat eveything. Yes but long long long ago a shark called a Meldon shark ate g â¦ reat white sharks but nothing could eat a Meldon shark!

The rainbow shark is a more slender, streamlined fish than the red tail shark. The rainbow shark also has a more pointed snout than the red tail shark. However, the biggest difference is the sharks' fins. While the red tail shark has a red tail and black fins, the rainbow shark has a red tail and red fins.

Alien Sharks: Goblin Shark. The goblin shark, discovered in the late 19th century, was named for its creepy appearance. Its long, flat snout works like a metal detector. Shark Week Alien Sharks: Goblin Shark The goblin shark, discovered in the late 19th century, was named for its creepy appearance.

Answer   The gestation period, or pregnancy can vary between species, ranging from from 16 days for the Syrian hamster, and up to to 30 days for species of the Dwarf hams â¦ ter.     16 to 30 days.This has happened to me before my hamster is a boy but it spent the night with my friends female and it took about two weeks until the female had babies i'm sure about this... its exactly 16 days!   The gestation period for hamsters ranges from 16 to 21 days. This is short for rodents.he gestation period of a shark can be as long as two years. The gestation period can be up to almost two years long (the spiny dogfish shark may have the longest shark gesta â¦ tion period). 9 people found this useful.

Sharks come in a range of sizes. The largest shark known is the whale shark, which reaches lengths of 12 metres (almost 40 feet) or more. The smallest shark, the dwarf shark, is only 25 cm (10 inches) long. The basking shark is the largest shark in Atlantic Canada, routinely reaching lengths of 8-9 metres.

A Chart Shows the Diversity of Shark Sizes. Sharks come in all sizes. The largest is the whale shark, which has been known to get as large as 18 meters (60 feet). The smallest fits in your hand. And the great white shark is somewhere in the middle. See photos and learn more about the wide diversity of sharks, read 5 reasons to revere sharks, and see even more articles about sharks. Tags:

There are many other dangerous sharks in the Mediterranean, including: 1  Blacktip shark (Carcharhinus limbatus) 2  Smooth hammerhead shark (Sphyrna zygaena) 3  Scalloped hammerhead shark (Sphyrna lewini)  Great hammerhead shark (Sphyrna 1  mokarran) Shortfin mako shark (Isurus oxyrinchus)  Grey nurse or sandtiger shark (Carcharias taurus)

-Tiger sharks, great white sharks, and other sharks that primarily eat seals and other mammals have sharp, serrated cutting teeth for tearing off chunks of flesh. -Finally, we have the gentle giants of the shark family, the basking sharks and whale sharks, that eat krill and other forms of plankton. While they have many teeth, they are tiny and useless, as these sharks feed by filtering water through their gills.

Thanks for visiting this Wonder of the DayÂ® about sharks, Madison! There are many, many different types of sharks, including Great Whites, in the oceans of the world. Because there are so many different sharks in so many different bodies of water, it would be impossible to count them all.

3) Whale â¦ s sharks have the same cartilaginous skeleton structure as other sharks Tthe reason its called WHALE shark is because it is the largest of all the sharks, and as whales are the currently biggest mammals on the earth it only seems appropriate.he only thing it got in common with whales is its  size.  A Whale Shark is a fish and a member of the shark family. It is  called a Whale Shark because the grow to very large size.

Joe Chernov and Robin Richards have created an infographic that illustrates the staggering number of sharks killed by humans every year. According to the infographic, sharks killed 12 people last year, but humans kill that many sharks every four seconds, adding up to an estimated total of 100 million sharks annually. Many sharks are killed by 'finning,' a process in which a shark's fins are cut off to be sold for shark fin soup.

White Shark Diving: White Shark Ventures invites you cage diving with great white sharks in the aptly named Shark Alley , near the fishing village of Gansbaai, South Africa. Sharks are quite possibly the world's most feared animals. From the smallest sand shark to the enormous whale shark, they are sleek, muscled, and some are almost as agile as a dolphin. There is no doubt that they are the most evolved predators in the ocean.

Most important we've see there are over 450 types of shark that fit into the 8 orders of shark and there are many differences. This is enough for now, we'll meet in more detail more of SharkyJones' friends and food in other pages, we'll also have a shark species guide looking at many more.

SHARK CARTILAGE Overview Information. Shark cartilage (tough elastic tissue that provides support, much as bone does) used for medicine comes primarily from sharks caught in the Pacific Ocean. Several types of extracts are made from shark cartilage including squalamine lactate, AE-941, and U-995. Shark cartilage is most famously used for cancer, including a type of cancer called Kaposiâs sarcoma, that is more common in people with HIV infection.

Shark Week The Fastest Shark in the Ocean The shortfin mako shark is the fastest shark in the ocean. This toothy torpedo can swim at speeds of up to 60 mph has a tail like a tuna fish, its favorite prey.01:58.he Fastest Shark in the Ocean. The shortfin mako shark is the fastest shark in the ocean. This toothy torpedo can swim at speeds of up to 60 mph has a tail like a tuna fish, its favorite prey.

Add to that the fact that sharks, as apex predators, are vital to maintaining the balance of our ocean ecosystems and you begin to understand the true value of sharks. Sharks and Ecotourism Sharks are worth more alive than dead! Divers rate sharks as among their top attractions on a dive site. Because of this, sharks bring millions of dollars in ecotourism revenue to coastal communities that can provide both protection for sharks and offer added sustainable tourism infrastructure.

Shark finning. Shark finning refers to the removal of fins from sharks, often while the shark is alive. The sharks are sometimes discarded back to the ocean, still alive but without their fins. Unable to swim effectively, they sink to the bottom of the ocean and die of suffocation or are eaten by other predators. Shark finning at sea enables fishing vessels to increase profitability and increase the number of sharks harvested, as they only have to store and transport the fins, by far the most profitable part o

Meet the Cast. 1  Barbara Corcoran Shark Follow @BarbaraCorcoran. 2  Mark Cuban Shark. 3  Lori Greiner Shark Follow @LoriGreiner. 4  Robert Herjavec Shark Follow @robertherjavec. 5  Daymond John Shark Follow @TheSharkDaymond. 6  Kevin O'Leary Shark Follow @kevinolearytv. 7  Richard Branson Guest Shark Follow @richardbranson.

The amount of food that a shark eats each day depends on the type of shark it is. Some Shark species will eat huge meals and then not eat again for weeks. They can survive on the oil that is stored in the liver when they do eat. When that gets low, they will have the instinct to eat again.

Tiger sharks are all of the above, according to Dr. Erich K. Ritter. Tiger sharks are noted for having the widest food spectrum of all sharks. They can eat almost anything, from turtles to birds, as well as other sharks and fish.Besides normal prey they even eat garbage like tires, nails or car license plates, as sometimes documented by examinations of their stomach contents.iger sharks are noted for having the widest food spectrum of all sharks. They can eat almost anything, from turtles to birds, as well as other sharks and fish.

The bull shark (Carcharhinus leucas), also known as the Zambezi shark or, unofficially, as Zambi in Africa and Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers.he bull shark is a special case in evolutionary history. Some of its closest living relatives do not have the capabilities of osmoregulation. The bull shark's genus, Carcharhinus, is shared by the sand bar shark that is not capable of osmoregulation.

The whale shark (Rhincodon typus) is a slow-moving filter feeding shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.50 ft) and a weight of approximately 21.5 metric tons (47,000 lb), and unconfirmed reports of considerably larger whale sharks exist.Claims of individuals over 14 m (46 ft) long and weighing at least 30 metric tons (66,000 lb) are not uncommon.he largest confirmed individual had a length of 12.65 m (41.50 ft) and a weight of approximately 21.5 metric tons (47,000 lb), and unconfirmed reports of considerably larger whale sharks exist. Claims of individuals over 14 m (46 ft) long and weighing at least 30 metric tons (66,000 lb) are not uncommon.

The pup (which is what a baby shark is called) will live its life at the top of the ocean's food chain. But before it grows larger, the pup must avoid predators bigger than it isâincluding other great white sharks. Many baby sharks do not survive their first year. Young great white sharks eat fish (including other sharks) and rays. As it grows, the shark's favorite prey becomes sea mammals, especially sea lions and seals. Sharks count on the element of surprise as they hunt.

Answer 3: Typically a shark has two to three working rows of teeth with 20 to 30 teeth in each row, although a whale shark has about 300 teeth in each row. The replacement rate has not been measured in most sharks but normally the teeth seem to be replaced every two weeks. The lemon shark replaces its teeth every 810 days, and the great white shark replaces its teeth about every 100 days for young sharks and about every 230 days for old sharks. (From wikipedia)

15. Shark teeth were recently discovered to contain fluoride. 16. Sharks do not suffer from cavities. 17. The inside of shark and human teeth contains a soft mineral known as dentin. 18. The coating of shark teeth is acid resistant and less water soluble than our teeth. 19. Shark teeth and human teeth are equally as hard. 20. Even though many sharks have sharp teeth that could inflict a wound to humans, sharks should always be treated with respect.

You may wonder why this fish is called a whale shark. Scientists have determined that it is a species of shark, because of its skeleton (composed entirely of cartilage), and its tough, leathery, scaleless skin. People called it a whale shark because of its enormous size (like a whale), not because it's a type of whale.

Bull sharks have been found up the Mississippi River as far north as Illinois, and one was found 2,500 miles up the Amazon. Lake Nicaragua is full of bull sharks, known locally as Nicaragua sharks. The Zambezi River in Africa is home to many bull sharks, which are called Zambezi sharks there. After Hurricane Katrina, large numbers of bull sharks were reportedly seen swimming in Lake Pontchartrain. Bull shark moms tend to give birth in coastal lagoons, river mouths, and other estuaries.

However, not everyone is out to get the tiger sharks. Scientists say that predators such as the tiger shark keep the ocean's ecosystem in balance, and in Native Hawaiian belief, tiger sharks are aumakua, or sacred guardian spirits.If you'd like to learn more about tiger sharks, swim over to the links on the next page.ea snakes were found 60 percent of the time, and sea turtles were found in 27 percent of the sharks, although only in larger sharks [source: Heithaus ]. But what gets people's attention is the wackier things that have shown up in a tiger shark's stomach.

For Hammerhead sharks, their life expectancy ranges from 20 to 30 years. Brown sharks and sandbar sharks are thought to live between 25 to 30 years. A research conducted in 2004 by joung identified that the lifespan of brown sharks is about 25 years while sandbar sharks can live up to 30 years.he life expectancy of tiger sharks in the wild is thought to be 28 years in average while some reach up to 50 years. But Just like the other kind, tiger sharks in captivity do not have a longer life span as those in the wild.

Tweet. The smallest shark in the world is the Dwarf Lanternshark; a dogfish that lives in the Caribbean Sea. They grow to a maximum of 17 centimeters and eat small fish and shrimp. The next smallest shark in the world is the Pygmy Shark that grows up to 25 centimeters long.These sharks are very closely related.hey grow to a maximum of 17 centimeters and eat small fish and shrimp. The next smallest shark in the world is the Pygmy Shark that grows up to 25 centimeters long. These sharks are very closely related.

There is now a warning system when sharks are seen near the coast. We have a shark watch database we are developing on iNaturaist and have developed recommendations to avoid shark encounters. We can, and we must coexist with this important, and increasingly threatened ocean predators. 5) What is Sharktober? We launched Sharktober and Sharktoberfest celebrations in 2008 to celebrate the return of the white sharks to our Sanctuary offshore, and to educate and motivate the public to protect sharks. The first campaign was to drive support for the now successful California Shark Fin Ban introduced by Sea Stewards (now Shark Stewards).

The bull shark, also known as the Zambezi shark in Africa, and Lake Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers. The bull shark is known for its aggressive nature, predilection for warm shallow water, and presence in brackish and freshwater systems including estuaries and rivers. Bull sharks can thrive in both salt and fresh water and can travel far up rivers. They have been known to travel up the Mississippi River as far as Alton, Illinois, although few freshwater human-shark interactions have been recorded.

The bull shark (Carcharhinus leucas), also known as the Zambezi shark or, unofficially, as Zambi in Africa and Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers.he size range of a litter for a female bull shark is around 1 to 13 pups. The average time span for a female bull shark to be pregnant is around 10 to 11 months. The male bull shark is able to begin reproducing around the age of 15 years while the female cannot begin reproducing until the age of 18 years.

by Katrina Cain. Tweet. The smallest shark in the world is the Dwarf Lanternshark; a dogfish that lives in the Caribbean Sea. They grow to a maximum of 17 centimeters and eat small fish and shrimp.The next smallest shark in the world is the Pygmy Shark that grows up to 25 centimeters long. These sharks are very closely related.They both like to live in deep water and both have bioluminescence; a chemical reaction in their skin that produces light.he next smallest shark in the world is the Pygmy Shark that grows up to 25 centimeters long. These sharks are very closely related. They both like to live in deep water and both have bioluminescence; a chemical reaction in their skin that produces light.

A Swai fish is a striped catfish that lives in freshwater and  tropical areas of Asia. It is an important food source in Thailand  and Vietnam. They are also known as Irides â¦ cent sharks and Siamese  sharks because of their somewhat resemblance to sharks.+ 188 others found this useful.o. Swai is a type of catfish, and catfish are not a kosher species of fish.

The whale shark, the world's largest fish, is classified as Endangered. Binding legislation and harvest management strategies... are urgently needed to address the disproportionate impact of fisheries on cartilaginous fishes.

A Profile of Shark Teeth: View images of fossil shark teeth and read about the history of sharks. Facts on Fossil Shark Teeth: Why are fossil shark teeth different colors? Discover the answer to this question along with others on this informative page.

More recent warnings are much more dire. Mercury in Tuna Is More Dangerous Than You Think. It's painful for me, because I love shark and swordfish, and that's clearly off the table these days. I'm also a giant fan of hamachi and that too seems to be entering the endangered meal list.

the body of a great white shark is shaped like a torpedo which helps the shark in achieving such great speeds the body of a great white shark can be around 4 6 6 4 meters long which is about 15 1 21 feet long as for weight great white shark can weigh around 2260 3 300kg which is about 4982 7275 poundshe body of a tiger shark can be around 3 5 meters long which is about 9 8 16 4 feet long some can get even bigger than that for instance one tiger shark was found to be 55 meters long which is about 18 feet long as for weight a tiger shark will usually weigh around 385 635kg which is about 849 1400 pounds

Although anglers can legally retain a 54 inch shortfin mako shark, both male and female shortfin mako sharks reach sexual maturity at sizes larger than 54 inches fork length (73 and 108 in fork length, respectively). This is also true of other sharks such as hammerhead, porbeagle, thresher, and blue sharks.lthough anglers can legally retain a 54 inch shortfin mako shark, both male and female shortfin mako sharks reach sexual maturity at sizes larger than 54 inches fork length (73 and 108 in fork length, respectively). This is also true of other sharks such as hammerhead, porbeagle, thresher, and blue sharks.

Goblin Shark Pictures and Stock Photos of this Rarely Seen Deep Sea Shark. Picture of goblin shark, Mitsukurina owstoni, specimen, a deep sea shark. It got its name from its bizarre and scary appearance - it looks weird and different from other sharks.

All the species you will see at the Newport Aquarium live in saltwater, but some species are able to live in freshwater too. Eighty percent of sharks are smaller than the average human, and only a dozen species have been known to attack humans. Our sharks are fed one to three times per week, depending on the species.

Largest Great White Shark. Read more Read less. Great white sharks may not be the world's biggest sharks, since that title goes to the whale shark, but they are the planet's largest known predatory fish. Whale sharks and great whites couldn't be more different in temperament.

Shark cartilage (tough elastic tissue that provides support, much as bone does) used for medicine comes primarily from sharks caught in the Pacific Ocean.Several types of extracts are made from shark cartilage including squalamine lactate, AE-941, and U-995.Shark cartilage is most famously used for cancer, including a type of cancer called Kaposiâs sarcoma, that is more common in people with HIV infection.ikely Ineffective for: 1  Cancer. 2  Most research shows that taking shark cartilage by mouth does not benefit people with advanced, previously treated cancers of the breast, colon, lung, prostate, and brain or advanced, previously treated non-Hodgkin's lymphoma.

Bull sharks are born alive in freshwater. The size range of a litter for a female bull shark is around 1 to 13 pups. The average time span for a female bull shark to be pregnant is around 10 to 11 months.The male bull shark is able to begin reproducing around the age of 15 years while the female cannot begin reproducing until the age of 18 years.he size range of a litter for a female bull shark is around 1 to 13 pups. The average time span for a female bull shark to be pregnant is around 10 to 11 months. The male bull shark is able to begin reproducing around the age of 15 years while the female cannot begin reproducing until the age of 18 years.

The outer design of sharks and bony fish is also contrasting. 1  Shark skin is covered by dermal denticles, toothlike placoid scales that are covered with enamel. 2  Shark fins are stiff and lack the fine bony spines and muscle control found in teleost. 3  Both sharks and bony fish have caudal fins, or tail fins with two lobes. The skull of a shark is made of only 10 cartilaginous elements while a bony fish skull has about 63 bones. 2  Bony fish have pleural ribs formed from dermal bone and sharks lack these ribs. 3  Unlike bony fish that have a protective bony plate covering their vulnerable gills, the gill slits of a shark are exposed and visible.

a bull shark can swim at speeds of around 25mph which is about 40 2km h the body of a bull shark is around 2 1 3 5 meters long which is about 6 9 11 5 feet longas for weight a bull shark will weigh around 90 230kg which is about 198 507 poundsbull sharks have the ability to live in both fresh water and salt waterhe body of a tiger shark can be around 3 5 meters long which is about 9 8 16 4 feet long some can get even bigger than that for instance one tiger shark was found to be 55 meters long which is about 18 feet long as for weight a tiger shark will usually weigh around 385 635kg which is about 849 1400 pounds

The Pacific is home to a huge range of weird and wonderful creatures. From the endangered enormous gray whale to microscopic plankton. Find out more about the gray whale click through in our factfile. The Pacific is also home to some of the more familiar ocean creatures, such as jellyfish, rays and sharks.

Sharks, as all fish, use their body and tail in a side to side motion to move through the water. Shark fins are rigid not flexible, and are supported by rods made of cartilage. Sharks have five different kinds of fins. 1  Paired pectoral fins lift the shark as it swims.  Paired pelvic fins stabilize the shark.

The Six gill Shark which is also known as Cow Shark is among the largest sharks of the world. It is predator and feeds on different type of animals. This large shark is found in almost all Oceans, especially in Pacific Ocean. It can be as long as 18 ft.

They must always remain in motion in order to respire valuable dissolved oxygen from the water. Size: The blacktip reef shark can reach up to six and a half feet in length. Life Span: 12 to 25 years. Color: The body of this shark type is a bluish-gray color.Range: Pacific and Indian Oceans. Habitat: The blacktip reef shark is very common in the coral reefs and shallow lagoons of the tropical Indian and Pacific Oceans.They are also beginning to enter the Mediterranean.hey must always remain in motion in order to respire valuable dissolved oxygen from the water. Size: The blacktip reef shark can reach up to six and a half feet in length. Life Span: 12 to 25 years. Color: The body of this shark type is a bluish-gray color.

Tiger Shark Habits and Habitat. The tiger shark loves warm waters and is found in most tropical and temperate regions. Other than a ready supply of food, tiger sharks don't have a lot of other requirements for their abode. Tiger sharks are found both on the surface and in depths of up to 1,150 feet (350 meters) [source: Knickle ] and they're found in lots of different waters, including river estuaries and harbors. Most often, though, this shark is found in murky waters in coastal areas.

The African Penguin's smaller size means that it has many predators both in the water and also on dry land. Their marine predators are primarily Sharks and Cape Fur Seals, but the biggest threat to them on land is not just to the adult Penguins, but more the vulnerable eggs and chicks.oday, the African Penguin is considered to be a vulnerable animal and has been listed as being Endangered by the IUCN. It is thought that today's African Penguin population of around 70,000 breeding pairs, is less than 10% of the population that existed in 1900.

1 The Indus river dolphins is one of only a handful of freshwater dolphins in existance today; Others include the Chinese river dolphin, Ganges river dolphin and Amazon river dolphin. Because these marine mammals live in the Indus river they do not face the same natural threats other dolphins are known to face such as attacks from sharks or killer whales. 2  Due to their apparent small population size these marine mammals are currently considered endangered and hunting them is considered illegal.

Car Rental. Mauritius is a paradise for deep sea fishing. Species include the blue or black marlin, all types of sharks, yellow tuna, the Bonitos, the emperor, the p lerin, the b cune or the barracuda.he ocean is 70 metres deep one kilometre away from the coast. Mauritius holds several world fishing records (IGFA), including that of the mako shark of 1115 pounds, the blue shark of 400 pounds, a bonito of 41.5 pounds, a white tuna of 224 pounds and a b cune of 125 pounds.

It can be found on the market as Swai Fish and shark catfish. It is a member of the catfish family. As a juvenile, the Swai Fish radiates a glow from the edges of its fins, thus given the name Iridescent Shark. It can grow up to four feet in length and weigh up to nearly 100 pounds.They are omnivores and will eat other fish, crustaceans, and different types of water plants.s a juvenile, the Swai Fish radiates a glow from the edges of its fins, thus given the name Iridescent Shark. It can grow up to four feet in length and weigh up to nearly 100 pounds. They are omnivores and will eat other fish, crustaceans, and different types of water plants.

Boom or bust. Removing a top predator can often alter the gentle balance of an entire ecosystem. Here's an example of what can happen: When an area floods permanently and creates a series of islands, not all the islands have enough resources to support top predators.his study points to the importance of top predators and that we need to be careful with how we deal with them.. 1  Top 10 Deadliest Animals. 2  Without Sharks, Food Chain Crumbles. 3  Image Gallery: Endangered and Threatened Wildlife. 4  Acid Buildup in Oceans Threatens Food Chain.

10 Surprising Indus river dolphin facts. 1  The Indus river dolphins is one of only a handful of freshwater dolphins in existance today; Others include the Chinese river dolphin, Ganges river dolphin and Amazon river dolphin. Because these marine mammals live in the Indus river they do not face the same natural threats other dolphins are known to face such as attacks from sharks or killer whales. 2  Due to their apparent small population size these marine mammals are currently considered endangered and hunting them is considered illegal.

Other than a ready supply of food, tiger sharks don't have a lot of other requirements for their abode. Tiger sharks are found both on the surface and in depths of up to 1,150 feet (350 meters) [source: Knickle ] and they're found in lots of different waters, including river estuaries and harbors.Most often, though, this shark is found in murky waters in coastal areas.he tiger shark will travel a long way for a bite to eat; one study found that the tiger shark swam about 30 miles to 40 miles (48 km to 64 km) a day looking for food [source: Tennesen ].

Blue whales have few predators but are known to fall victim to attacks by sharks and killer whales, and many are injured or die each year from impacts with large ships. Blue whales are currently classified as endangered on the World Conservation Union (IUCN) Red List.hen a blue whale exhales, the spray from its blowhole can reach nearly 30 ft (9m) into the air. Size relative to a bus: Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet (30 meters) long and upwards of 200 tons (181 metric tons).

The Iridescent Shark is not really a shark but gets its name because it resembles on in appearance. It can be found on the market as Swai Fish and shark catfish. It is a member of the catfish family. As a juvenile, the Swai Fish radiates a glow from the edges of its fins, thus given the name Iridescent Shark. It can grow up to four feet in length and weigh up to nearly 100 pounds. They are omnivores and will eat other fish, crustaceans, and different types of water plants.

Sharks are fish, they are a type of fish called chondricthyes or cartilaginous fish. This group includes Sharks, rays and a group of fish called Chimaera, none of the fish in this group have any bones, instead they have cartilage, click here to find out more about types of fish. There are 8 orders (types) of shark. We'll look at these now, in another part we'll look at their relatives and where they fit into the entire grouping of the animal kingdom. Each of the 8 orders of sharks have their own adaptations to their environment.

If you aren't sure what type of food a certain shark species eats, check out its mouth. Different sharks have specialized teeth tailored to their preferred prey. Great whites have razor-sharp, triangular fangs to slice through the thicker, fattier flesh of larger fish and sea mammals.

Confidence votes 30. It depends on the type of shark, most sharks like living in warm or tropical waters,such as Hawaii and Australia.Some sharks though can live in colder waters,such as the Greenland shark and the Great White shark.The Great White Shark has even been seen in the cold waters of Sanfransisco.

Red Tail Sharks and Black Tail Sharks. The Red Tail and Black Sharks are two variations of the Labeo subspecies of Cyprinids. They tend to be aggressive toward other sharks, or shark-like fishes and should be kept in a tank without any other fishes of this type. Suggested tank size is 40 to 55 gallons or larger.

These sharks include great white sharks, tiger sharks, and bull sharks. The hammerhead shark, also known as mano kihikihi, is not considered a man-eater or niuhi; it is considered to be one of the most respected sharks of the ocean, an aumakua.

Freshwater sharks can be misleading, since most of these fish are not sharks at all. But when children see the name, many of them instantly want them, because it's apparently cool to have a shark tank.. The most commonly sold freshwater sharks are the Bala shark and Red-Tailed Black shark.

Shark Tank is all about the Sharks, but Shark Tank Podcast is all about the Entrepreneurs! 50,000+ Entrepreneurs try out each season for Shark Tank, but only about 120 of them will air on TV. If you want to create your own Shark Tank Tsunami...then you had better be a Shark Tank Insider.

Shortfin mako shark. The shortfin mako shark (Isurus oxyrinchus), also known as the blue pointer or bonito shark, is a large mackerel shark. It is commonly referred to as the mako shark, as is the longfin mako shark (Isurus paucus).

How do sharks see, smell and hear? Never seen a shark with ears? Well, sharks only have an inner ear. Two holes on either side of a shark's head might be the only clue you'd have to the presence of shark ears. Yet sound is often the shark's first tip-off that prey is nearby. The prey doesn't even have to be that close.

Medium Fish and Small Shark Eaters. Some of the sharks who have the above mentioned as their food are the bull and blue sharks. Bull sharks are known to not be so picky with their food. However, they are fond of eating bony fishes such as flounders, stingrays, and even other sharks like the hammerhead shark.

Confidence votes 11. Sharks are attracted to blood and smelly farts. If there is ever a shark attach try not to poop alot because that will attract more sharks because of shark sugar. Most of the time if there is a shark attack a helicopter will come to assist but the helicopter will not attract more sharks to come.

megalodon shark was much bigger than whale shark cause a megalodon shark is almost 100 feet while an whale shark is just 62-75 feet. But the megalodon has been extinct for aboâ¦ut 1.5 million years, leaving the whale shark the biggest shark alive.

The bull shark is known to be a solitary hunter, although brief moments exist in which the bull shark teams up with another bull shark to make hunting and to tricking prey easier. Sharks are known to be opportunistic feeders, and the bull shark is no exception to this, as it is part of the Carcharhinus family of sharks.

But the thought of crossing paths with a shark (there are few white sharks in the Gulf - thank goodness) isn't a thought I enjoy. Tiger sharks, bull sharks, and even black and white tip sharks are no laughing matter in my book, and while shark encounters are rare in Texas, the do happen every year.

Placoid scales are found in sharks and rays, and can vary greatly in external appearance. Scales of a White Shark. Photographer: Sue Lindsay Â© Australian Museum. Unlike the scales of bony fishes, placoid scales do not increase in size as the fish grows, instead new scales are added between older scales.Placoid scales are often referred to as denticles.Each placoid scale consists of a flattened rectangular base plate which is embedded in the fish, and variously developed structures, such as spines, which project posteriorly on the surface.The spines give many species a rough texture.here are large differences in the development of these spines between different species. Placoid scales are composed of a vascular (supplied with blood) inner core of pulp, a middle layer of dentine and a hard enamel-like outer layer of vitrodentine.

A shark tooth is one of the numerous teeth of a shark. A shark tooth contains resistant calcium phosphate materials. Sharks continually shed their teeth; some Carcharhiniformes shed approximately 35,000 teeth in a lifetime, as well as replace them by producing thousands of more. There are four basic types of shark teeth: dense flattened, needle-like, pointed lower with triangular upper, and non-functional.

1 1996: Shows to air included The Ultimate Guide: Sharks, Danger Beach, and Tales of the Tiger Shark, which is the third most watched Shark Week program ever.  1997: Shark Bites: A Decade of Shark Week aired this year, which was a two-hour special reviewing some of the best moments on Shark Week.

The bull shark, also known as the whaler shark, Zambezi shark or unofficially known as Zambi in Africa and Nicaragua shark in Nicaragua, is a shark common worldwide in warm, sâ¦hallow waters along coasts and in rivers. The bull shark is well known for its unpredictable, often aggressive behavior.

There are now more than 10,000 shark pictures and sections on shark evolution, biology, and conservation. There is a large library of reviewed shark books, a constantly updated shark taxonomy page, a monster list of shark links, and deeper in the site there are numerous articles and stories about shark encounters.

If we go by the official list of dangerous sharks (e.g. from the International Shark Attack File ISAF, an institution which analyzes and collects reports on shark attacks) the white shark (Carcharodon carcharias) ranks first, followed by the tiger shark (Galeocerdo cuvier) and the bull shark (Carcharhinus leucas).

-Tiger sharks, great white sharks, and other sharks that primarily eat seals and other mammals have sharp, serrated cutting teeth for tearing off chunks of flesh. -Finally, we have the gentle giants of the shark family, the basking sharks and whale sharks, that eat krill and other forms of plankton.

A cartilaginous fish's skin is covered in placoid scales, or dermal denticles, tooth-like scales different from the flat scales (called ganoid, ctenoid or cycloid) found on bony fish.ifferent shark species may have different numbers of gill slits. Cartilaginous fish may also breathe through spiracles, rather than gills. Spiracles are found on top of the heads of all rays and skates, and some sharks.

Sharks come in all sizes. The largest is the whale shark, which has been known to get as large as 18 meters (60 feet). The smallest fits in your hand. And the great white shark is somewhere in the middle. See photos and learn more about the wide diversity of sharks, read 5 reasons to revere sharks, and see even more articles about sharks.

But sharks are in trouble around the world. Rising demand for shark fins to make shark fin soup, an Asian delicacy, has resulted in increased shark fishing worldwide; an estimated 100 million sharks are killed by fisheries every year. Sharks are accidentally caught in nets or on long line fishing gear.

Bluntnose Sixgill Shark. The Bluntnose sixgill shark, Hexanchus griseus, is the ninth biggest shark in the world and is often referred to as a cow shark. The Bluntnose sixgill shark is a member of the Hexanchidae family; most of their relatives are extinct. These sharks skin color's can range from tan/brown to nearly black in color.

Shark. Shark The huge water fish is fondly eaten for its fins. Shark is common seafood in many countries including Japan and Australia. Shark fish is eaten in fish and chips in parts of New Zealand and Australia. In many countries, shark meat is sold under the common name of fish. Sharks are often hunted for their fins.

Stories tell of men with shark jaws on their back who could change between shark and human form. A common theme was that a shark-man would warn beach-goers of sharks in the waters. The beach-goers would laugh and ignore the warnings and get eaten by the shark-man who warned them. Hawaiian mythology also includes many shark gods.

How does the Goblin Shark reproduce? Little is known about the goblin shark's reproductive systems but it is assumed that it reproduces almost identically to most other sharks. Sharks fertilize the egg within the female body which is unique for a bony fish . The male shark has a sex organ called claspers which transfers sperm into the female shark in order to fertilize eggs .

Shark teeth are the most common type of fossil for a number of reasons. First, shark teeth, like most teeth, are made of dentin, a hard calcified tissue that does not easily decompose. Dentin is harder and denser than bone.he skin of a shark is made of tiny denticles, which are made of the same enamel that teeth have, meaning they too can fossilize. Some more primitive sharks have spines in their fins that will fossilize. Finally, shark feces, or coprolites, are sometimes found preserved.

Most shark attacks occur less than 100 feet from the shore. More people are killed by bee stings and lightning than by shark attacks. Worldwide about 30 people die each year from shark attacks, which means a person has a one in 300 million chance of being killed by a shark. A shark attack most often occurs when a shark mistakes a person for a seal or other animal.

Among shark taxonomists conservative estimates of the number of known shark species is now approaching 500. Combined with the 700 or more species of rays and skates there are well over a thousand valid species of elasmobranches.

Tiger Sharks: Another large shark, capable of growing to a length of over 16 feet, or 5 meters, the Tiger Shark can be found in the Caribbean and other warm waters around the world.iger Sharks: Another large shark, capable of growing to a length of over 16 feet, or 5 meters, the Tiger Shark can be found in the Caribbean and other warm waters around the world.

Shark Meat by Any Other Name. Common Names for Shark Meat. You might be eating shark and not know it. There are several important reasons that you might not want to eat shark including high mercury levels, their precarious conservation position, and the sometimes inhumane way that sharks are fished and finned. Surimi (Imitation Crab Meat) (Pollock, another common fish used in Imitation Crab Meat is ~not~ shark).

Hammerhead shark, (family Sphyrnidae), any of eight shark species belonging to the genera Sphyrna (with seven species) and Eusphyrna (with one species), which are characterized by a flattened hammer- or shovel-shaped head, or cephalofoil.

An example of such a shark is the bull shark which is notorious for wandering into freshwater and has been found over 4200 kilometers / 2,600 miles upstream in rivers such as the Amazon. Bull sharks also live in Lake Nicaragua and these sharks are often referred to as true freshwater sharks. Recent studies do however show that even if bull sharks can live for many years in Lake Nicaragua, they do not breed there and they need to return to the ocean to breed.

Answer: Cartilaginous fish are fish that have a skeleton made of cartilage, rather than bone. All sharks, skates, and rays (e.g., the southern stingray) are cartilaginous fish. These fish all fall into the group of fish called the elasmobranchs.n addition to the difference in their skeletons, cartilaginous fish have gills that open to the ocean through slits, rather than the bony covering that is present in bony fish. Different shark species may have different numbers of gill slits.

Tiger Shark Prey and Predators. As we've mentioned, one of the most interesting things about tiger sharks is its diet. The tiger shark's diet changes as it ages.ea snakes were found 60 percent of the time, and sea turtles were found in 27 percent of the sharks, although only in larger sharks [source: Heithaus ]. But what gets people's attention is the wackier things that have shown up in a tiger shark's stomach.

Report a loan shark. Loan sharks are illegal moneylenders who often charge very high interest rates. You can check if a company is authorised to lend money and report loan sharks anonymously.eport a loan shark. Loan sharks are illegal moneylenders who often charge very high interest rates. You can check if a company is authorised to lend money and report loan sharks anonymously.

Sharks in the Caribbean: The Facts. Shark attacks in the Caribbean are rare. The chances of being attacked in North America and South Africa are much higher. Florida shark attacks average from 20-30 per year, and the Bahamas has had the most attacks out of all the islands in the Caribbean.iger Sharks: Another large shark, capable of growing to a length of over 16 feet, or 5 meters, the Tiger Shark can be found in the Caribbean and other warm waters around the world.

shark week the fastest shark in the ocean the shortfin mako shark is the fastest shark in the ocean this toothy torpedo can swim at speeds of up to 60 mph has a tail like a tuna fish its favorite prey01 58he shortfin mako shark is the fastest shark in the ocean this toothy torpedo can swim at speeds of up to 60 mph has a tail like a tuna fish its favorite prey 01 58

Hammerhead sharks are large carnivorous fish that prey on large fish and occasionally hammerhead sharks will hunt small water mammals. Hammerhead sharks are found in the warmer waters of oceans worldwide but hammerhead sharks are particularly found in coastal waters, and along continental shelves. The shallow waters that the hammerhead sharks inhabit allow the hammerhead shark to hunt prey more easily.

Fun Facts About Zebra Sharks: 1  The long tail of zebra shark allows it to be more agile in the water. 2  Zebra shark is Black, Brown, Grey in color. 3  As zebra sharks have intense patterns, they are included in the group of carpet sharks, as the patterns on a zebra shark look like the designs of a carpet. They have tail fins on their body that are able to grow as long as their body.

Using a Shark Steam Mop is as simple as pressing a button. Most Shark devices allow users to choose from three settings: Dust, mop, and scrub. The Shark Vac-Then-Steam, a sibling product, is also capable of vacuuming the floor before steaming it.o store the mop, the user removes the pad for cleaning, and then hang the Shark Steam Mop until its next use. The user should never leave a hot Shark Steam Mop in one place. Excessive heat can damage wood, carpet, and other types of flooring.

These are the prices of the Shark Cards and converted in game values. The Red Shark Cash Card $2.99 100,000. The Tiger Shark Cash Card $4.99 200,000. The Bull Shark Cash Card $9.99 500,000. The Great White Shark Cash Card $19.99 1,250,000. The Whale Shark Cash Card $49.99 3,500,000. The Megalodon Cash Card $99.99 8,000,000.

Indian Sandtiger Shark (Eugomphodus tricuspidatus) 12.1 feet. 19. Blue Shark (Prionace glauca) 12.6 feet. 18. Shortfin Mako Shark (Isurus oxyrinchus) 12.92 feet. 17. Oceanic Whitetip Shark (Carcharhinus longimanus) 12.95 feet. 16. Dusky Shark (Carcharhinus obscurus) 13 feet. 15. Prickly Shark (Echinorhinus cookei) 13 feet. 14.

As the eggs develop within the female nurse shark they eventually hatch and the mother gives birth to small live nurse sharks. The nurse shark pups resemble the fully grown nurse sharks with the exception of, of course, their size. A newborn nurse shark measures in at approximately 12 inches long. The average nurse shark mother gives birth to around 20 to 30 pups in a single birthing session.

The bull shark (Carcharhinus leucas), also known as the Zambezi shark or, unofficially, as Zambi in Africa and Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers.he bull shark is known for its aggressive nature, predilection for warm shallow water, and presence in brackish and freshwater systems including estuaries and rivers. Bull sharks can thrive in both saltwater and freshwater and can travel far up rivers.

Sharks have been attacking humans for over five million years. When swimming, it is an idea to put meat on your wetsuit so that it will repel them. Additionally sharks hate blood in the water, chumming the water will repel the most agressive sharks. Sharks have been evolving since the late 1700's. The shark, the killer of the deep, the dominant predator of the ocean, feared by all who see it, once was the most powerful animal in the world. The shark had long ago walked the earth as man does today.

An important lesson: we need sharks! Where sharks are eliminated, the marine ecosystem loses its balance. In the parts of the ocean where sharks have been fished out of existence, we can see the dangerous result of removing the top predator from an ecosystem. The lesson is important. Sharks are being killed for their fins for shark fin soup, a food that has assumed cultural value but is not important for human survival or health. However, removing the sharks can result in the loss of important foods that we do depend upon for survival.

The smallest known shark, the dwarf lantern shark, is only about 8  inches long.Even so, this little fish has a full set of tiny  teeth, the smallest shark teeth there are.â¦. 2 people found this useful.he smallest known shark, the dwarf lantern shark, is only about 8  inches long. Even so, this little fish has a full set of tiny  teeth, the smallest shark teeth there are. â¦. 2 people found this useful.

That kind of number is going to change from shark to shark. The point is that sharks keep growing teeth throughout their lives - no matter how many they lose, they will never run out. Answer 3: Typically a shark has two to three working rows of teeth with 20 to 30 teeth in each row, although a whale shark has about 300 teeth in each row. The replacement rate has not been measured in most sharks but normally the teeth seem to be replaced every two weeks. Click Here to return to the search form.

Swim in a group. Regardless of the danger of sharks, you should avoid swimming alone. If sharks are present, however, it's even more important to travel with a buddy or a group. Sharks are less likely to approach and attack a group of people, and if one member of the group is attacked, help is immediately available. When diving, go straight to the bottom. 2  If you swim on the surface it will make you look like a fish. 3  If you see a shark, exit the water and alert others. 4  If the shark is aggressive, be prepared to fight (punch the shark in the nose).

And Tiger Sharks are very curious, aggressive and have an excellent sense of smell. New Smyrna is known as the shark attack capitol of the world. Be careful when surfing out in the Atlantic, Florida sharks are known to attack humans! Common sharks in New Smyrna beach include blacktip, spinner and tiger sharks. Photo Credit: Flickr / DAVID S. FERRY III,DDS / CC BY-SA 4.0 Click Here to See Most Shark Infested Beaches.

Based on cytochrome b genes, Martin and Naylor (1997) concluded the thresher sharks form a monophyletic sister group to the clade containing the families Cetorhinidae (basking shark) and Lamnidae (mackerel sharks).s a result, the long-tailed or common thresher shark, Alopias vulpinus, is also known as the fox shark. The common name is derived from a distinctive, thresher-like tail or caudal fin which can be as long as the body of the shark itself.

I give you the biggest white shark ever seen in front of the cages in Guadalupe Islandâ¦Deep Blue. Shark researcher Mauricio Hoyos Padilla. The latest sighting of her was in water near Mexico's Guadalupe Island. It is estimated at 50 years old and thought to be one of the biggest in the world today. The shark, who is estimated to be around 50 years old, is believed to be one of the largest great white sharks ever seen. Shark researcher Mauricio Hoyos Padilla has been able to tag the shark.

<br /> It's alot faster than 1 mph, a human swims 2-5 mph average. <br /> It depends on what kind of shark, but the mako can get up to 45-50 mph in short bursts. When a shark is hitting prey from underneath they can reach up to 30mph. The type of shark they are asking for is clearly a Great White Shark. <br /> It's alot faster than 1 mph, a human swims 2-5 mph average. <br /> It depends on what kind of shark, but the mako can get up to 45-50 mph in short bursts.

Dugong Island and Shark Valley comprise two massive oceanariums, amongst the largest in the world, and have underwater tunnels allowing visitors to examine marine life at close quarters. In the Shark Valley Oceanarium, SEA LIFE Sydney Aquarium houses a large collection of sharks including Lemon Sharks and Grey Nurse Sharks. Some of the sharks weigh up to 300 kilograms (660 lb) and are over 3 metres (9.8 ft) in length. Research and conservation

Sharks: Body Parts. If you look at a shark, you will see it has a number of special adaptations that allow it to fit into an ocean environment. A shark has fins and a streamlined body that help it swim through water.It has gills, which take in oxygen directly out of the water.Because of its gills, sharks can stay underwater and not have to come to the surface to breathe. shark has fins and a streamlined body that help it swim through water. It has gills, which take in oxygen directly out of the water. Because of its gills, sharks can stay underwater and not have to come to the surface to breathe.

Characteristics of Cartilaginous Fish: In addition to the difference in their skeletons, cartilaginous fish have gills that open to the ocean through slits, rather than the bony covering that is present in bony fish. Different shark species may have different numbers of gill slits.Cartilaginous fish may also breathe through spiracles, rather than gills.nswer: Cartilaginous fish are fish that have a skeleton made of cartilage, rather than bone. All sharks, skates, and rays (e.g., the southern stingray) are cartilaginous fish. These fish all fall into the group of fish called the elasmobranchs.

Smell is probably the most important shark sense, so much so that sharks have been referred to as swimming noses [source: SeaWorld]. There are some impressive statistics to back this up, too. A shark can sniff out fish extracts that make up only one part for every 10 billion parts [source: Elasmodiver]. Other research shows sharks are able to respond to one part blood for every one million parts of water; this is like being able to smell one teaspoon of something in a swimming pool [source: Shark Trust]. What's more, sharks can smell these small amounts from hundreds of meters away [source: SeaWorld].

A great white shark, for example, would be able to detect a single drop of blood in an Olympic-size pool. Most sharks can detect blood and animal odors from many miles away. Another amazing thing about a shark's sense of smell is that it's directional. The twin nasal cavities act something like your two ears: Smell coming from the left of the shark will arrive at the left cavity just before it arrives at the right cavity. In this way, a shark can figure out where a smell is coming from and head in that direction. Sharks also have a very acute sense of hearing.

The bull shark, also known as the Zambezi shark in Africa, and Lake Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers. The bull shark is known for its aggressive nature, predilection for warm shallow water, and presence in brackish and freshwater systems including estuaries and rivers. Bull sharks can thrive in both salt and fresh water and can travel far up rivers. They have been known to travel up the Mississippi River as far as Alton, Illinois, about 700 miles (1100 km) from the ocean.

Oceanic whitetip sharks, Carcharhinus longimanus (Poey, 1861), aka white-tipped shark, whitetip oceanic shark and whitetip shark, are large stocky sharks with a huge, rounded first dorsal fins and long, wide-tipped pectoral fins.ceanic whitetip sharks feed on oceanic bony fishes, including tuna and mahi-mahi (dolphinfish, Coryphaena hippurus), threadfins, stingrays, sea turtles, sea birds, gastropods (snails), squid, crustaceans, mammal carrion and sometimes even garbage.

It was found that the bull shark stayed at the mouth of the river independent of the salinity of the water. The driving factor for a bull shark to be in freshwater or saltwater is its age; as the bull shark ages the tolerance for very low or high salinity increases.ne way the bull shark is able to conserve energy is that when the tidal flow changes, the bull shark uses the tidal flow in order to conserve energy as it moves downriver. Another way for the bull shark to conserve energy is to decrease the amount of energy needed to osmoregulate the surrounding environment.

Fossil Shark Teeth. Shark teeth are made of a solid substance called dentin. This material is slow to decompose, which is part of the reason why fossil shark teeth are so plentiful. When a shark loses a tooth, it ends up on the bottom of the ocean, where it's covered with protective layers of sediment.hark teeth are made of a solid substance called dentin. This material is slow to decompose, which is part of the reason why fossil shark teeth are so plentiful. When a shark loses a tooth, it ends up on the bottom of the ocean, where it's covered with protective layers of sediment.

Last year there were a total of 47 shark attacks in the U.S., with two of them ending in a fatality. The states with the highest number of shark attacks that occurred last year, according to the International Shark Attack File, are as follows: Florida with 23 attacks, Hawaii with 13 and South Carolina with six.California, North Carolina, Texas, Oregon and Alabama each reported one shark attack.he states with the highest number of shark attacks that occurred last year, according to the International Shark Attack File, are as follows: Florida with 23 attacks, Hawaii with 13 and South Carolina with six.

Some species, such as spiny dogfish and porbeagle, are targeted primarily for their meat. The oceanic whitetip, porbeagle and three hammerhead species are some of the shark species of concern for WWF, where the impact of trade is contributing to declines in populations. Millions of these sharks continue to be fished annually to supply the persistent demand for their fins and meat.

Called a cephalofoil, each shark's head can have a slightly different appearance. The names of some species describe the different bumps and creases in their cephalofoils; the scalloped hammerhead, for example, has ridges all along their cephalofoils. At an average size of 10 to 13 feet and weighing up to 1,000 pounds, the great hammerhead shark is the largest of the group. The bonnethead is the smallest, with an average size of just 3 feet long and weight of less than 7 pounds. The scoophead is also very small, with its cephalofoil sometimes representing one-third the size of its entire body.

A bull shark can swim at speeds of around 25mph which is about 40.2km/h. The body of a bull shark is around 2.1-3.5 meters long which is about 6.9-11.5 feet long.As for weight, a bull shark will weigh around 90-230kg which is about 198-507 pounds.Bull sharks have the ability to live in both fresh water and salt water.he body of a tiger shark can be around 3-5 meters long which is about 9.8-16.4 feet long. Some can get even bigger than that, for instance one tiger shark was found to be 55 meters long which is about 18 feet long.

The skin of an adult whale shark can be as thick as 4 inches (10 cm) and has the consistency of strong rubber, which limits possible predators to killer whales, great white sharks, tiger sharks and humans. Color. Whale shark has a two-toned pattern of light spots on its dark gray back with a white underside. Each whale shark has its own individual spot pattern; like human fingerprints, no two are exactly alike. Teeth. Teeth of the whale shark are tiny and pointed backward; they are thought to have no function in feeding.

Rating Newest Oldest. Best Answer: It totally depends on the species of shark fish eggs in general can take from 2 days to longer than a week to hatch...what species it it?ating Newest Oldest. Best Answer: It totally depends on the species of shark fish eggs in general can take from 2 days to longer than a week to hatch...

Shark lifespan vary by kind. Although the majority of types live 20 to 30 years in the wild, there are some kinds that live much longer than others. For example, the spiny dogfish has one of the longest lifespan at more than 100 years, while the blue shark in the wild has an average lifespan of 15-16 years.n the wild, it is thought that their life expectancy is 30 years. The typical lifespan in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Sandbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.

One way the bull shark is able to conserve energy is that when the tidal flow changes, the bull shark uses the tidal flow in order to conserve energy as it moves downriver. Another way for the bull shark to conserve energy is to decrease the amount of energy needed to osmoregulate the surrounding environment.ne way the bull shark is able to conserve energy is that when the tidal flow changes, the bull shark uses the tidal flow in order to conserve energy as it moves downriver. Another way for the bull shark to conserve energy is to decrease the amount of energy needed to osmoregulate the surrounding environment.

Notes Edit. 1  Tiger sharks are arguably the most dangerous enemy in Stranded Deep, due to their relentless aggression and speed of attack. 2  According to the save files, tiger sharks spawn with 200 health. 3  Crude axes are considered to be an effective weapon for hunting tiger sharks. A tiger shark can be killed with exactly 10 hits from an axe. 2  As of v0.03.H2, the spawn chance of a tiger shark has been adjusted from 100% down to 30%. 3  There is a bug currently located in the game: once a tiger shark latches onto the player, it will drag the player back to the island.

Minimum Tank Size: 3000 gallons Water Conditions: 60-74Â° F, dKH 8-12, sg 1.020-1.025, pH 8.0-8.4 Diet: Carnivore Origin: Eastern Pacific, Baja California Family: Triakidae Species: Sharks Aquarium Type: Fish Only Species Information Grey Smooth Hound Sharks originate in temperate waters of the eastern Pacific, primarily from California down to ...

In the wild, it is thought that their life expectancy is 30 years. The typical lifespan in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Sandbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.n the wild, it is thought that their life expectancy is 30 years. The typical lifespan in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Sandbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.

The rare goblin shark was caught by fishermen on the NSW south coast. A rare and very unusual shark was caught by fishermen trawling off Green Cape, south of Eden on the NSW south coast last Thursday.The creepy looking fish, known as a goblin shark (Mitsukurina owstoni), was accidentally caught by local fisherman in a net along with a load of crayfish.The shark is sometimes called a living fossil and is usually found near the sea floor at depths of about 1200 metres.he rare goblin shark was caught by fishermen on the NSW south coast. A rare and very unusual shark was caught by fishermen trawling off Green Cape, south of Eden on the NSW south coast last Thursday.

the body of a tiger shark can be around 3 5 meters long which is about 9 8 16 4 feet long some can get even bigger than that for instance one tiger shark was found to be 55 meters long which is about 18 feet long as for weight a tiger shark will usually weigh around 385 635kg which is about 849 1400 poundshe body of a tiger shark can be around 3 5 meters long which is about 9 8 16 4 feet long some can get even bigger than that for instance one tiger shark was found to be 55 meters long which is about 18 feet long as for weight a tiger shark will usually weigh around 385 635kg which is about 849 1400 pounds

1 The skull of a shark is made of only 10 cartilaginous elements while a bony fish skull has about 63 bones. 2  Bony fish have pleural ribs formed from dermal bone and sharks lack these ribs. 3  Unlike bony fish that have a protective bony plate covering their vulnerable gills, the gill slits of a shark are exposed and visible. The skull of a shark is made of only 10 cartilaginous elements while a bony fish skull has about 63 bones. 2  Bony fish have pleural ribs formed from dermal bone and sharks lack these ribs. 3  Unlike bony fish that have a protective bony plate covering their vulnerable gills, the gill slits of a shark are exposed and visible.

The bull shark is a requiem shark-some of the most abundant sharks in the ocean, with over 54 species belonging to this single group.

TYPES OF SHARKS. To wrap it up, let's look at some of the types of sharks we've been discussing. ANGEL SHARK: 1  flat body like a stingray -- you can tell the shark is not a ray because the pectoral fins are not attached to the head.

Bull sharks are large and stout, with females being larger than males. The bull shark can be up to 81 cm (2.66 ft) in length at birth. Adult female bull sharks average 2.4 m (7.9 ft) long and typically weigh 130 kg (290 lb), whereas the slightly smaller adult male averages 2.25 m (7.4 ft) and 95 kg (209 lb). While a maximum size of 3.5 m (11 ft) is commonly reported, a single record exists of a female specimen of exactly 4.0 m (13.1 ft). The maximum recorded weight of a bull shark was 315 kg (694 lb), but may be larger. Bull sharks are wider and heavier than other requiem sharks of comparable length, and are grey on top and white below.

Sharks' Role in the Ocean Sharks play a critical role in keeping our oceans healthy and in balance because most shark species are at the top of the marine food web.

Fact Sheet: Sand Tiger Sharks. The sand tiger shark (Carcharias taurus) is one species of shark which has been chased and slaughtered simply because of its threatening appearance.

Frilled shark. The frilled shark (Chlamydoselachus anguineus) is one of two extant species of shark in the family Chlamydoselachidae, with a wide but patchy distribution in the Atlantic and Pacific Oceans.

It depends on the shark species in question. The greenland shark for example is thought to live up to 200 years. Most sharks are believed to live at least 20 to 30 years.

The diets of sharks vary according to species, but most sharks eat fish, squid and crustaceans. Although they have preferences, sharks tend to be opportunistic hunters, eating what is available according to where they are at a given time.

Answers.com Â® WikiAnswers Â® Categories Animal Life Fish Saltwater Fish Sharks Hammerhead Sharks How many Hammerhead Sharks Species are there?

The dangerous shark is just as rare as the nonaggressive shark. Obviously there are species which - simply due to their size - should only be approached with great caution, for body size is a problem when it comes to dealing with sharks.

Hammerhead Shark Behavior. While most species of sharks are loners, the Hammerhead Sharks swim in schools during the daylight hours. These schools can have up to 100 members in them. At night time though they go to find food and they do that on their own.

Oceans. Sharks have been around for over hundreds of millions of years. While many of us may be familiar with a few shark species, there are over 400 of them, from the 8-inch-long dwarf lanternshark to the 40-foot-long whale shark.

Shark skin is very rough because if you see it very closely it is covered with small denticles. Denticles are found all over the body of every species of shark out there. They help make it easier to swim and help the shark to save energy.

Shark reproduction, even at its best, can't keep pace with shark deaths. Most shark species are losing ground, including many that roam the Space Coast. Some could face extinction within a decade or two.

All sharks swim very fast, but the blue shark is one of the fastest species. Blue Sharks often look hungry due to the thin body they have. However, they are slender by nature and it has nothing to do with the amount of food they eat.

Life Cycle. Every shark species has its own expected life span and so it is wrong to set an average for sharks as a whole. However, very broadly speaking, we can say that most sharks live for between 20 and 40 years.

From Wikipedia, the free encyclopedia. The Spiny dogfish shark (Squalus acanthias), also known as the Spiny dogfish, is one of the most common and well known species of dogfish. It is a small species of shark, with an average length of 28-39 inches (70-100 cm), and reaching a maximum weight of 9.8 kg.he Spiny dogfish has a slim, long body and a flattened head. The snout is narrow, with a pointed tip. The eyes of this species are quite large. The first dorsal fin is located about halfway between the pectoral fins and the pelvic fins.

1. Shark. This means any type of meat eating shark such as Longfin Mako, Shortfin Mako, Blacktip, or common Thresher shark. Because sharks are at or near the top of the food chain, they consume other types of fish as their main source of food.

Shortfin mako sharks are thought to be the fastest shark species. These sharks can grow to a length of about 13 feet and a weight of about 1,220 pounds. They have a light underside and a bluish coloration on their back.

Reasons Why Shark Have So Many Teeth One of the most notable features of sharks is the sheer amount of razor-sharp teeth lining their jaws. In fact, depending on the species, sharks can go through several thousands teeth in their lifetime.

The megamouth shark is an extremely rare species of deepwater shark. Since being discovered in 1976, only a few megamouth sharks have been seen with 44 specimens known to have been caught or sighted as of 2009 and three recordings on film.

As one of the world's most shark-infested stretches of water, Beqa Lagoon has no shortage of toothy creatures to see. But, the stars of Beqa Lagoon are the tiger sharks, who swim alongside seven other species of sharks.

OK if someone tells you how many sharks are in the world they are lying. Oceans+Seas are twice larger than the landmass on this planet and most of it is still unknown to man. So there is no way in hell that anyone could know how many sharks are in the water. There are about 370 species of shark in the world.

There are over 470 species of sharks and have a large rangein size. The smallest shark is the dwarf lanternshark with a maxlength of about 8.3 in. The largest is the whale shark (the largestfish in the world) which grows to about 39 feet in length.

The great white shark (Carcharodon carcharias), commonly known as the great white or the white shark, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans.

Tiger shark is one of the largest species of sharks on the planet. This animal can be found in the warm, tropical and subtropical waters all over the world. Largest population of tiger sharks lives in Melanesia, Micronesia and Polynesia.

One of the main differences between sharks and other animals is that the males have claspers that they use to get the sperm into the females. Sharks have two claspers one on each side of their body. Broadly speaking, reproduction in sharks may be sexual or asexual depending on the species.

The bull shark (Carcharhinus leucas) belongs to the potentially dangerous sharks. This rather large species can grow to a length of 350 cm and weigh 230 kg. The first problem is already revealed in the question. Sharks are basically not dangerous.

Most species of shark eat things like fish, crustaceans, mollusks, plankton, krill, marine mammals and other sharks. Sharks also have a very acute sense of smell that allows them to detect blood in the water from miles away.

Most species of sharks are found in the oceans. However, some of them are known to live in bodies of fresh water, like the bull shark which is known to travel up to 4,000 Km up the Amazon River. Sometimes, sharks have been found even in unusual fresh water bodies.

The Sand Tiger Shark It is one of the aggressive shark species and their aggressiveness begins right in the uterus. Is give birth to young who develop from eggs within the female shark body. The females have two uteri and that carry many eggs.

Black tip shark is named after black tip of the dorsal fin that can be seen when shark swims near the surface of the water. This species of shark can be found in tropical waters of Pacific and Indian oceans and Mediterranean Sea.

While many of us may be familiar with a few shark species, there are over 400 of them, from the 8-inch-long dwarf lanternshark to the 40-foot-long whale shark. Sharks are efficient predators with a highly developed sense of smell, hearing and sight.

Goblin shark. The goblin shark (Mitsukurina owstoni) is a rare species of deep-sea shark. Sometimes called a living fossil, it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old.

Sharks are harder, but some species, such as the Great White, have calcified tissue that grows in layers on their back bones, that can also be used to age the animals. But the Greenland shark is a very, very soft shark - it has no hard body parts where growth layers are deposited.

It depends. The zebra shark (Stegostoma fasciatum) is a carpet shark that lives on reefs in warm water, but it is sometimes called the leopard shark. However, the leopard sharâ¦k (Triakis semifasciata) is a cold water species of houndshark.

The zebra shark (Stegostoma fasciatum) is a carpet shark that lives on reefs in warm water, but it is sometimes called the leopard shark. However, the leopard shar â¦ k (Triakis semifasciata) is a cold water species of houndshark.

Beqa Lagoon is one of the world's very few shark sanctuaries, set up to protect the many species nearby from the harmful effects of overfishing on their food supplies. Established in 2004 the Shark Reef Marine Reserve is dedicated to the protection of Sharks.

TYPES OF SHARKS. To wrap it up, let's look at some of the types of sharks we've been discussing. ANGEL SHARK: 1  flat body like a stingray -- you can tell the shark is not a ray because the pectoral fins are not attached to the head. 2  They bury themselves in the sand or mud with only the eyes and part of the top of the body exposed.

Along with the Blacktip Reef Shark and Gray Reef Shark, it is one of the most frequent sharks in the Indo-Pacific. This species is easily spotted due to its curious, irregular, and waving swimming style and of course, the white tip on its dorsal fin.

The name tiger is given to this shark because of strips on its body. It is found in all Oceans and especially in warm oceans. The average weight of this species of shark fish is 939 kilograms. The fifth largest or biggest or heaviest shark in the world.

The great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large lamniform shark which can be found in the coastal surface waters of all the major oceans.

These species include the winghead, mallethead, scalloped hammerhead, scoophead, great hammerhead and bonnethead sharks. These sharks differ from other sharks, as they have very unique hammer-shaped heads. They inhabit tropical and warm temperate oceans around the world. More Â».

Below, you can learn about the largest species in the two main groups of fish. The largest fish in the world is a shark - the whale shark (Rhincodon typus). The whale shark can grow to about 65 feet long and weigh up to 75,000 pounds.

Whale sharks are the largest species of sharks in the world. Their average size ranges from 18 to 32 feet, but they have been known to reach 40 feet long or more. Whale sharks can reach a weight of approximately 20 tons.

The white shark can weigh over 5,000 pounds, in some cases. A 16  footer weighed 3,444 pounds when harpooned off Australia, and  longer white sharks have been seen.   Grâ¦eat Whites are one of the largest species of Sharks known to Man.

It has been known to attack people, which makes it one of species of shark that people most fear. Blue sharks can grow up to 12 feet long so this is no small shark to be trying to get away from. Due to the speed and the strength of it very few of its prey have a chance of survival.

450 Million Years of Sharks. Sharks have swum in the oceans for almost 450 million years. But longevity is only part of the story. That extra few million years of evolution have enabled many shark species to develop some extraordinary abilities as perfect predators.

Hammerhead Shark Family Sphyrnidae Introduction to Hammerhead Shark. Even if you struggle to keep various species of sharks clear in your mind from the rest, this is one that you will easily remember. They have the unique shaped head that has made them such a fascinating to experts as well as to the general public.

Tiger sharks (pictured) are among the 17 species that appear to lack color vision. Sharks may be able to smell blood from miles away, but they probably don't know how red it is: New research suggests sharks are color-blind.

The mako shark, also called shortfin mako shark or blue pointer, is the fastest of all shark species, and can reach an average speed of 22 mph, though scientists have found one particularly spry specimen traveling at an astonishing 43 mph.

The goblin shark Moore caught last month was only the second member of the species ever caught in the Gulf of Mexico, and the first since 2000, shark expert John Carlson said. Moore, 63, of Townsend, Georgia, estimates the shark was 18 to 20 feet long.

Quick Answer. There are approximately 470 known species of shark in the world, but it's impossible to count the exact number of individual sharks on the planet. World Wildlife Fund estimates that more than 100 million sharks are killed each year for their fins. Continue Reading.

  Well, the length of time for an egg to hatch depends on the species of shark. At my aquarium store, we had a banded shark egg hatch after four months and four days in ou â¦ r store. I have no experience with marbled cat shark eggs.

Many hammerhead sharks live in warm waters fairly close to shore, although most of them are not considered of much danger to humans. Here you can learn about the 10 species of hammerhead sharks, which range in size from about 3 feet to 20 feet in length. Great Hammerhead Shark.

In their attempt to determine if sharks have color vision, Hart and his team used microspectrophotometry to identify cone visual pigments in shark retinas and measure their pectral absorbance. They looked at the retinas of 17 shark species caught in Queensland and Western Australia.

The reason for this is that it is hard to see a shark close to the bottom at this time. The success rate of attacks is 55% in the first 2 hours, it falls to 40% in late morning and after that the sharks stop hunting. The hunting technique of the white shark varies with the species it hunts.

Sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi) of only 18 cm (7 in) in length, to sharks which reach over 12 m (40 ft) in length. The biggest sharks are the largest fish in the world.

One of the coolest fish around. Sharks of all species and sizes are caught here in St. Augustine and Palm Coast year round although we do most of our serious shark fishing in the summer months. In the backcountry water we sometimes find sharks in the extreme shallow water where we can use light tackle to catch the lighting fast fish.

In fact if you exclude the cetacean species (whale, dolphins and porpoises) the whale shark is the largest living animal in existence, in regards to length. The average male whale shark grows to just over 30 ft in length although there are reports of whale sharks growing well over 40 ft.

Nothing beyond these scales or the teeth is known about these early sharks. More complete fossil shark remains date to 380 million years old, including a fossilized shark braincase, possibly a xenacanth, found in Australia. Other remains of this or similar species have been found in Antartica and Saudi Arabia.

Unprovoked White Shark Attacks on Surfers. There were 41 confirmed unprovoked shark attacks on surfers along the West Coast of North America during the Twentieth Century, which represented 38% of the total reported cases. The White Shark was determined to be the causal species in all but two.

How long does it take for a salt water shark egg to hatch?   Well, the length of time for an egg to hatch depends on the species of shark. At my aquarium store, we had a banded shark egg hatch after four months and four days in ou â¦ r store.

The zebra shark is a species of carpet shark. Adult zebra sharks are distinctive in appearance, with five longitudinal ridges on a cylindrical body, a low caudal fin comprising nearly half the total length, and a pattern of dark spots on a pale background.

With close to 400 shark species floating around, you could fill volumes cataloguing their individual food habits. While cookiecutter sharks take nonlethal bites of flesh from their prey and call it a day, great white sharks may eat large sea mammals in one big gulp.

There are over 470 species of shark swimming in Earth's oceans, but we tend to focus most of our attention on about five of them. Here's some of the coolest, lesser known sjarks we've heard of. 1. Megamouth shark. Image caption: Megamouth shark by OpenCage via Wikimedia Commons. Licensed by CC.

Most large sharks are cold-blooded and cruise at a leisurely 1.5 mph. Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured. The Blue Shark is an open ocean glider, planing on wing-like pectoral fins and flattened belly.

It is considered as the most dangerous for humans because it often attacks on humans. The name tiger is given to this shark because of strips on its body. It is found in all Oceans and especially in warm oceans. The average weight of this species of shark fish is 939 kilograms. The fifth largest or biggest or heaviest shark in the world.

During the survey they identified 16 species of shark in Bahraini waters-the. , milk, sliteye, spottail, blacktip, hooktooth, slender weasel, hardnose, whitecheek, great hammerhead, pigeye, spinner, grey sharpnose, whale shark, Arabian carpet shark and Arabian smoothhound.

Mandalay Bay Shark Reef. Location: Located at Mandalay Bay hotel-casino near the intersection of the Vegas Strip and Hacienda Avenue. One of the largest exhibits of its kind, The Shark Reef at Mandalay Bay houses more than 1,200 species of aquatic life including sharks, exotic fish and more.

Whale shark. The whale shark (Rhincodon typus) is a slow-moving filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.5 ft) and a weight of about 21.5 t (47,000 lb).

  Well, the length of time for an egg to hatch depends on the species of shark. At my aquarium store, we had a banded shark egg hatch after four months and four days in ou â¦ r store. I have no experience with marbled cat shark eggs. 2 people found this useful.

How Many Teeth Does A Great White Shark Have? The amount of teeth that sharks have vary according to the species, from 5 to 15 rows of teeth in each jaw. Sharks teeth take about one week to fall, as they do not have roots to hold them as human teeth. When they fall, the tooth behind moves up to replace them. This process does not take more than 24 hours.

Capture-induced parturition is rarely considered in fisheries management despite being shown to occur in at least 12% of live bearing sharks and rays (88 species to date). The majority of shark fisheries have little monitoring or management. The rise in demand for shark products increases pressure on fisheries.

Tiger sharks (pictured) are among the 17 species that appear to lack color vision. Sharks may be able to smell blood from miles away, but they probably don't know how red it is: New research suggests sharks are color-blind. The Curious Case of the Bumblebee, the Virus and the Tomato.

SHARKOPEDIA: THE TOP 10 LARGEST SHARKS. Counting down the 10 largest sharks is a tricky endeavour. Beyond the two largest shark species of which we know, there is no consensus on how to rank the largest living ones. New measurements continue to be reported, and experts continue to squabble over which to accept and which to toss back.

Some living groups have ancient histories. For example, sharks have existed as a group for over 350 million years! Today, sharks and rays (elasmobranchs) are represented by over 600 species that show a remarkable range of ecological and morphological diversity. Unlike the true fishes, sharks do not have internal bone, but instead have a cartilaginous skeleton.

What Kind Of Shark Can Live In Fresh Water? Although some sharks can swim into river estuaries with mixed fresh and salt water and some even use this areas as nursery for young sharks, most of the time they live in ocean water. However there are two species that are capable of surviving long time in fresh water with physiological adaptations that allow this.

Sharks belong to the class of boneless fish known as Chondrichthyes. The Chondrichthyes class is divided in two sub-classes Holocephali {Chimeras) and Elasmobranchii {Sharks and Rays}. Similar species of sharks are put into Families, and families with similar characteristics are placed in larger groups called Orders.

Home Â» FAQs Â» How Many Teeth Do Sharks Have? The amount of teeth that sharks have vary according to the species, from 5 to 15 rows of teeth in each jaw. Sharks teeth take about one week to fall, as they do not have roots to hold them as human teeth. When they fall, the tooth behind moves up to replace them. Links to other pages in this site.

Now lets take a look at how exactly shark teeth are fossilized. Depending on the species, sharks can go through as many as 50,000 or more teeth in their lifetime. If you've ever seen a shark's jaw before, you'll notice how they have rows upon rows of sharp, jagged teeth. When one of these teeth fall out, it usually goes to the bottom of the ocean floor and is replaced by a new one.

Monterey Bay Aquarium Releases White Shark After 11 Days In Captivity; Fed Only Once. Study Stirs Controversy Over Why So Many Species Live In Tropical Forests And Coral Reefs. Monterey Bay Aquarium Puts Another Great White Shark on Exhibit; Previous Shark Released After 198 Days.

Musick, J.A. & Fowler, S.L. (Shark Red List Authority) Justification: This assessment is based on the information published in the 2005 sharks status survey (Fowler et al. 2005). The Bull Shark (Carcharhinus leucas) is a common tropical and subtropical species that occurs in marine, estuarine and freshwater.

The South Padre Island Extreme Shark Fishing Charter Package. Extreme Shark fishing is one of the newest and most extreme things to experience on South Padre Island. This experience you will have the chance to reel in and get your picture taken with one of the many species of shark that call the waters of South Padre Home. Most are catch and release.

Porbeagle Shark. Scientific name: Lamna nasus. Also known as: Mackerel Shark, Porgie. Size: Up to 12ft and 600lbs. In UK waters typically 7-8ft and 300lbs. UK minimum size: All UK shark species have a default minimum weight of 40lbs/18kg (shore) and 50lbs/23kg (boat).

Identifying marks and appearance. Bull sharks may grow to a length of 350 cm and weigh about 230 kg. Their massive appearance is rather striking. Their short and round snout is a conspicuous feature, and in contrast to other gray shark species from the Carcharhinidae family, bull sharks have very small eyes. Their most noticeable characteristic is, however, the dorsal fin which is shaped like a triangle.

Wes Pratt, Mote Center for Shark Research. The success of nurse sharks as a species results in part from a wide diet of fish and reef invertebrates, caught mostly at night by suction feeding in crevices. Young nurse sharks will patrol the flats day or night on a rising tide in search of foraging crabs and octopi.

So, whenever movie-makers want to add a little 'danger' to an ocean-based story, all they have to do was show one or more phony shark fins above the surface. But  in truth  sharks in the wild very, very rarely swim with their dorsal fins exposed above the surface. Most shark species swim fairly close to the bottom or in mid-water (the large expanse of ocean between the bottom and the surface).

1 Females are larger than males, as in most shark species. 2  The largest accurately measured whale shark was 40 feet 7 inches (12.2 m), although there are anecdotal reports of a 60-foot (18 m) whale shark in 1925.  The average length is between 18 and 32.8 feet (5.5 - 10 m).

Pollution is not only chemical, it can come in the form of discarded fishing gear and plastics that can entangle and injure or kill sharks and other marine life. Whether it is discarded plastic toys, a Frisbee has been found like a noose around a sharks gills, or miles of discarded longline filament, or gillnets that were lost by the fishermen, each poses a serious threat to sharks and many other marine species.

1 A whale shark. 2  A whale shark and a diver. 3  Whale sharks are the largest fish species, ranging from 18 to 40 feet (5 to 12 m) in length. Though they live in warm waters across the globe, researchers usually get to study them only in coastal waters where young juvenile males cluster to feed.

Amazing Thresher Shark Facts. 1  Thresher sharks are widely known for their elongated whip-like tail that is typically used to stun their prey. 2  These shark species are active predators. 3  They have small mouth and large eyes. 4  Common thresher is by far the largest thresher with a length of about 6.1 meters (20 feet).

Life Cycle of Bull Sharks. These aggressive species of sharks swim in shallow waters and are known to attack people, who happen to encounter them. The female bull sharks appear larger than the males and measure up to 11.5 feet in length and weigh 500 pounds. The males grow up to 7 feet and weight around 200 pounds.

The tail features an upper lobe that is longer than what you will see on any other species of shark. The tail doesnât have the common ventral lobe either. The Goblin Shark features a snout that is short and flat. Many people have dubbed it the ugliest looking of all sharks due to that design of the snout. The flatness of it is also wide and contains many rows of teeth that are long and smooth with the exception of the back teeth.

The whale shark (Rhincodon typus) is a slow-moving filter feeding shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.50 ft) and a weight of approximately 21.5 metric tons (47,000 lb), and unconfirmed reports of considerably larger whale sharks exist.

Of the 10 known species of hammerhead, only three of them are known to be particularly dangerous to humans: the scalloped, great, and smooth hammerheads. As of 2013 there have been 33 attacks, but no fatalities.ammerhead sharks are known to eat a large range of prey including fish, squid, octopus, crustaceans, and other sharks. Stingrays are a particular favorite. These sharks are often found swimming along the bottom of the ocean, stalking their prey.

This species of shark is able to keep its body perfectly still and that helps it have the element of surprise in the darkness of the water. This is one way that they can get the volume of food they need but still conserve their energy. Goblin Shark Reproduction. There is virtually no information about the reproduction habits of the Goblin Shark. There has never been any female that was pregnant found or captured. It is believed that that are ovoviviparous and that their eggs hatch in the body of the mother and then she gives live birth to them.

1 Hurricanes: The number of direct hurricane hits for individual states from 1851-2004 (source: N.O.A.A.). 2  Shark Attacks: Total number of unprovoked shark attacks from 1837-2013 (source: Florida University International Shark Attack File). 3  Spiders: Total number of venomous spider species (source: Venombyte).

Some scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age. Like with other species, tiger sharks in captivity do not live as lengthy as in wildlife reaching only 17 to 20 years.

Most people would assume that killer whales would be the most dangerous whale, and as they are at the top of the aquatic food chain, this makes them really dangerous. However killer whales are actually a species of dolphin, not whale. shark is more dangerous than a whale because whales eat krill. Sharks eat meat but that doesn't mean they would just swim up and eat you. A shark would only hurt a person if you were in its territory,you were surfing and looked like a seal from below, or if it was desperately hungry.

Also called the thrasher shark, this species possesses a distinctive large tail that resembles the arc of a rainbow. The tail is so large that it accounts for 33 percent of the shark's total body weight, meaning that the tail alone may weigh up to 767 pounds. Rarely seen near shore, the thresher shark mostly lives along the continental shelves of North America and Asia. It has been identified in all of the world's tropical oceans.

The frilled shark (Chlamydoselachus anguineus) is one of two extant species of shark in the family Chlamydoselachidae, with a wide but patchy distribution in the Atlantic and Pacific Oceans.he gestation period may be as long as three and a half years, the longest of any vertebrate. Litter sizes vary from two to fifteen, and there is no distinct breeding season. Frilled sharks are occasional bycatch in commercial fisheries, but have little economic value.

The life-span of tiger sharks in the wild is considered to be 27 years in average, even though some may live up to 50 years of age. As with other species, tiger sharks in captivity do not live as extensive as in wildlife reaching only 17 to 20 years. Some experts presume that the lifespan of the Great White Sharks is approximately 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years.

Worldwide, killer whales have been observed preying on more than 140 species of animals, including many species of bony fish, sharks and rays, and 50 different species of marine mammals. Killer whales have also been reported to eat many other types of animals including leatherback sea turtles, dugongs, moose, and penguins and other seabirds. Antarctic small type B killer whales have been observed hunting penguins like these AdÃ©lies.

Porbeagle Shark. 1  Scientific name: Lamna nasus. 2  Also known as: Mackerel Shark, Porgie. 3  Size: Up to 12ft and 600lbs. In UK waters typically 7-8ft and 300lbs.  UK minimum size: All UK shark species have a default minimum weight of 40lbs/18kg (shore) and 50lbs/23kg 1  (boat). UK shore caught record:  N/a.

The spiral valve allows the food to be completely absorbed and digested. The more food that can be absorbed, the less a shark has to eat. The liver, an accessory organ to the digestive system, also has a major evolutionary significance in the shark. The lamprey liver is a single small lobe behind the heart.he structure of the digestive tract and its evolution are affected by many factors. Such factors include the type of food eaten, the level of activity and metabolism, and the size of the animal. The mouth and oral cavity of the shark has evolved according to the type of food the shark eats.

The name whale shark comes from the fish's size, being as large as some species of whales and also that it is a filter feeder like baleen whales.hale sharks have a mouth that can be 1.5 m (4.9 ft) wide, containing 300 to 350 rows of tiny teeth and 10 filter pads which it uses to filter feed. Whale sharks have five large pairs of gills. The head is wide and flat with two small eyes at the front.

Females are larger than males, as in most shark species. The largest accurately measured whale shark was 40 feet 7 inches (12.2 m), although there are anecdotal reports of a 60-foot (18 m) whale shark in 1925. The average length is between 18 and 32.8 feet (5.5 - 10 m). Newborns measure 21 to 25 inches (53 - 64 cm) long. Body Composition.

The whale shark is a slow-moving, filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m and a weight of about 21.5 t. The whale shark holds many records for sheer size in the animal kingdom, most notably being by far the largest living nonmammalian vertebrate. It is the sole member of the genus Rhincodon and the only extant member of the family Rhincodontidae which belongs to the subclass Elasmobranchii in the class Chondr

Thresher sharks are large lamniform sharks of the family Alopiidae found in all temperate and tropical oceans of the world; the family contains four species, all within the genus Alopias.he bigeye thresher, Alopias superciliosus, is next in size, reaching a length of 4.9 m (16 ft); at just 3 m (10 ft), the pelagic thresher, Alopias pelagicus, is the smallest. Thresher sharks are fairly slender, with small dorsal fins and large, recurved pectoral fins.

The iridescent shark (Pangasianodon hypophthalmus) is a species of shark catfish (family Pangasiidae) native to the rivers of Southeast Asia.n iridescent shark requires a minimum tank size of 12 m (40 feet) to develop naturally. Schools require even larger tanks. If given enough room and fed adequately, individual fish can reach 1 m (3 feet) in length. In most home aquariums, the lack of space severely stunts its growth.

Some even turn from male to hermaphrodite. These switches ensure reproduction takes place at times when members of the opposite sex are in short supply. Some intersex species can self-fertilize and produce offspring without a partner, but others still require a mate. While intersex fish are common, intersex sharks are rather rare. However, a handful of hermaphrodite sharks have indeed been documented. For example, back in 2002, a southern lantern shark possessing both male and female internal sex organs was found off the coast of Tasmania.

The name whale shark comes from the fish's size, being as large as some species of whales and also that it is a filter feeder like baleen whales.he whale shark is the largest non-cetacean animal in the world. The average size of adult whale sharks is estimated at 9.7 m (31.82 ft) and 9 t (20,000 lb). Several specimens over 18m in length have been reported The largest verified specimen was caught on 11 November 1947, near Baba Island, in Karachi, Pakistan.

Great white sharks may not be the world's biggest sharks, since that title goes to the whale shark, but they are the planet's largest known predatory fish. Whale sharks and great whites couldn't be more different in temperament.

10 Whale Shark in the Sea of Cortez Less commonly seen is the whale shark (pictured above with attendant remoras). The world's largest fish species, the whale shark is a filter feeder that is attracted to the gulfâs abundant plankton.he gulf covers an area the size of Ecuador-or about 109,000 square miles (282,000 square kilometers). In the image above, the Midriff Archipelago in the Sea of Cortez can be clearly seen, with the two largest islands, Isla Tiburon on the left, and Isla Angel de la Guarda on the right.

Blacktip reef sharks have extremely small home ranges and exhibit strong site fidelity, remaining within the same local area for up to several years at a time.They are active predators of small bony fishes, cephalopods, and crustaceans, and have also been known to feed on sea snakes and seabirds. tracking study off Palmyra Atoll in the central Pacific has found the blacktip reef shark has a home range of around 0.55 km 2 (0.21 sq mi), among the smallest of any shark species. The size and location of the range does not change with time of day.

Oceanic whitetip shark range. The oceanic whitetip shark can be found from Maine in the United States, south to Argentina in the Western Atlantic Ocean, including the Caribbean and Gulf of Mexico,and from Portugal to the Gulf of Guinea in the eastern Atlantic.This species may also occur in the Mediterranean Sea.he oceanic whitetip shark mates during the early summer in the north-western Atlantic and the south-western Indian Ocean, and females give birth to between 1 and 15 live young after a gestation period of 10 to 12 months.

Read more Read less. Great white sharks may not be the world's biggest sharks, since that title goes to the whale shark, but they are the planet's largest known predatory fish. Whale sharks and great whites couldn't be more different in temperament.

Sharks, as all fish, use their body and tail in a side to side motion to move through the water. Shark fins are rigid not flexible, and are supported by rods made of cartilage. Sharks have five different kinds of fins. Paired pectoral fins lift the shark as it swims.

FRED BAVENDAM / MINDEN PICTURES / Getty Images. Great white sharks may not be the world's biggest sharks, since that title goes to the whale shark, but they are the planet's largest known predatory fish. Whale sharks and great whites couldn't be more different in temperament.

The oldest generally accepted shark scales are from about 420 million years ago, in the Silurian period. The first sharks looked very different from modern sharks. The majority of modern sharks can be traced back to around 100 million years ago. Most fossils are of teeth, often in large numbers.

The free rear tip of the first dorsal fin is abruptly light gray or white, a feature unique to this species. The porbeagle may attain a length of 3.7 m (12 ft), though this is uncertain and may have resulted from confusion with other mackerel shark species.A more typical length is 2.5 m (8.2 ft).rized for its meat and fins, the porbeagle has long been under heavy fishing pressure. The meat is sold fresh, frozen, or dried and salted, and ranks among the most valuable of any shark: in 1997 and 1998 it had a wholesale price of EUR 5â7/kg, four times that of the blue shark (Prionace glauca).

The species originated about 60 million years ago. The whale shark is found in open waters of the tropical oceans and is rarely found in water below 71 Â°F (22 Â°C). Modeling suggests a lifespan of about 70 years but measurements have proven difficult.he whale shark is the largest non-cetacean animal in the world. The average size of adult whale sharks is estimated at 9.7 m (31.82 ft) and 9 t (20,000 lb). Several specimens over 18m in length have been reported The largest verified specimen was caught on 11 November 1947, near Baba Island, in Karachi, Pakistan.

The species has been spotted 2,500 miles (4,000 kilometers) up the Amazon River in South America and dwell in Lake Nicaragua, a freshwater lake in Central America. Bull sharks have traveled up the Mississippi River as far north as Illinois and are regularly spotted in India's Ganges.Their ability to tolerate freshwater is rooted in salt retention.Sharks must retain salt inside their bodies.Without it, their cells will rupture and cause bloating and death.ull sharks have traveled up the Mississippi River as far north as Illinois and are regularly spotted in India's Ganges. Their ability to tolerate freshwater is rooted in salt retention. Sharks must retain salt inside their bodies. Without it, their cells will rupture and cause bloating and death.

The goblin shark (Mitsukurina owstoni) is a rare species of deep-sea shark. Sometimes called a  living fossil , it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old.This pink-skinned animal has a distinctive profile with an elongated, flattened snout, and highly protrusible jaws containing prominent nail-like teeth.t is usually between 3 and 4 m (10 and 13 ft) long when mature, though it can grow considerably larger. Goblin sharks inhabit upper continental slopes, submarine canyons, and seamounts throughout the world at depths greater than 100 m (330 ft), with adults found deeper than juveniles.

The spiny dogfish tends to be be found in the warmer coastal waters although it is not uncommon to spot spiny dogfish hunting in the freezing sub-Antarctic waters. The spiny dogfish is a small-sized shark with a grey coloured body that has a light underside and little white spots on the back of the spiny dogfish.The spiny dogfish also has large eyes and a short snout and unlike many other species of shark, the spiny dogfish does has have an anal fin.The most distinctive feature of the spiny dogfish are the two spikes found on the back of the spiny dogfish, one spike in front of each dorsal fin.he spiny dogfish tends to be be found in the warmer coastal waters although it is not uncommon to spot spiny dogfish hunting in the freezing sub-Antarctic waters. The spiny dogfish is a small-sized shark with a grey coloured body that has a light underside and little white spots on the back of the spiny dogfish.

In order to identify teeth and specific information about the teeth, research can be done on a shark tooth. This research may uncover many different aspects about the tooth itself, and the shark species.

Some common kinds of shark include the hammerhead shark, the great white shark, the tiger shark, and the mako shark.

From the blue shark to the whale shark, what are the 20 largest sharks? Check out this list of the 20 largest sharks from Shark Week.

Along each shore a group of highly adapted plants and animals, many of them strange to our land, make their homes. ANIMALS. Tropical Fish. There are many types of life in the oceans and other marine biomes. Some major animals are sharks, fish, and whales.There are many individual species in each of the categories.Such as blue whales, salmon, and great white sharks.long each shore a group of highly adapted plants and animals, many of them strange to our land, make their homes. ANIMALS. Tropical Fish. There are many types of life in the oceans and other marine biomes. Some major animals are sharks, fish, and whales.

Sharks will kill and eat other sharks, or anything else that looks like fresh food. So â¦ if a shark is killed, it will often be immediately consumed by other sharks, along with anything and everything else in the vicinity. Not necessarily true, there is evidence that certain sharks will eat carrion.

Sharks are not carrion eaters; they do not eat things that have been dead for a while. Sharks will kill and eat other sharks, or anything else that looks like fresh food. So â¦if a shark is killed, it will often be immediately consumed by other sharks, along with anything and everything else in the vicinity.

While bull sharks may be the most menacing, another shark is probably responsible for the most human shark bites, according to Burgess. In 2013, the United States had a total of 47 shark attacks, according to the International Shark Attack File.

Appendix I, which lists animals that are threatened with extinction, lists. 1  Requiem sharks. 2  Hammerhead sharks. 3  Basking shark. 4  Mackerel sharks. 5  Whale shark.

Dogfish Shark Placoid Scales. Dogfish is the common name used to refer to many small sharks belonging to several different families. The best known are the spiny dogfishes, which belong to the family Squalidae. Spiny dogfishes feature two spines, one in front of each fin, that contain venom in certain species.

The whale shark is one of three large filter-feeding sharks; the others are the megamouth shark (Megachasma pelagios) and the basking shark (Cetorhinus maximus). The whale shark forages for food at or near the surface of the ocean.

1. The Bull Shark is the most aggressive. It is the most aggressive of all the sharks. It can live in both salt and fresh water. And it will attack anything because of it's aggressive. 2. The Great White Shark is the 2nd most aggressive shark. It is the biggest shark of it's time andâ¦

Using mitochondrial DNA, a phylogenetic tree of the hammerhead sharks showed the winghead shark as its most basal member. As the winghead shark has proportionately the largest hammer of the hammerhead sharks, this suggests that the first ancestral hammerhead sharks also had large hammers.

Do other sharks eat whale sharks? Sharks may try to eat whale sharks if there is not a lot of other food, but it would be very hard and probably not work because whale sharke are the largest fish on Earth and â¦they kill other fish and even sharks very easily.

Bull shark. The bull shark (Carcharhinus leucas), also known as the Zambezi shark or, unofficially, as Zambi in Africa and Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers.

Commercial shark-finning is a practice where sharks are caught and their fins are cut off, then the body of the shark is discarded. Shark finning kills an estimated 100 million or more sharks globally per year. Bycatch. Bycatch in commercial fisheries is also a major threat.

Examples of Cartilaginous Fish: 1  Whale Shark. 2  Basking Shark. 3  Shortfin Mako Shark. 4  Great White Shark. 5  Thresher Sharks. 6  Skates. 7  Southern Stingray.

1 Sharks, skates, and rays are collectively termed Elasmobranchs, which are a subclass of Chondrichthyes, or the cartilaginous fishes. 2  The largest shark is the Whale shark which can reach up to 40 feet in length.earn about sharks and opportunities to see them in the wild including whale sharks, hammerheads, and others.

The oldest shark fossils. The oldest fossilized evidence of prehistoric sharks comes from shark-like scales that date to 455 million years ago during the Ordovician Period, in Colorado. Some paleontologists do not agree that these scales are sufficiently shark-like to pronounce them sharks.

Bull shark. The bull shark (Carcharhinus leucas), also known as the Zambezi shark or, unofficially, as Zambi in Africa and Lake Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers.

Due to public demand and the wow factor, aquariums want to include rarer sharks, such as the great white shark (Carcharodon carcharias), tiger shark (Galeocerdo cuvier), scalloped hammerhead shark (Sphyrna lewini), and whale shark (Rhincodon typus), in their exhibits.

The Thresher shark, similar to its smaller brother the 'Bigeye Thresher Shark', is another large breed of shark that can grow as long as 18 feet. THe Thresher shark is the 8th biggest shark known to man and is found in tropical oceans around the world.

How old is the oldest shark in the world? Sharks can live to be 200 yrs.. The oldest shark still alive is the shark Mandig Hai who is currently 188 yrs old, has a statue, and his own art exhibition with photo proof â¦documenting the sharks life.

Generally sharks have only one layer of tesserae, but the jaws of large specimens, such as the bull shark, tiger shark, and the great white shark, have two to three layers or more, depending on body size. The jaws of a large great white shark may have up to five layers.

As the name suggests, certain sharks feed by filtering the food matter, such as zooplankton, and other small fish from the water through a process where the water is passed through a detailed filtering mechanism. Among the shark subclass, whale shark, megamouth shark, and basking shark are filter feeders.

Click Here to see the Complete List of Most Shark Infested Beaches. Some common sharks include bull sharks that are found in shallow waters. Great White Sharks prefer to stay in deep waters. Blacktip Sharks can be found in groups and appear in shallow water.

The name bull shark comes from the shark's stocky shape, broad, flat snout, and aggressive, unpredictable behavior. In India, the bull shark may be confused with the Sundarbans or Ganges shark. In Africa, it is also commonly called the Zambezi River shark or just Zambi.

Only sharks that swim near the bottom of the sea eat starfish. Nurse sharks, horn sharks and Port Jackson sharks are all known to eat them. All of these sharks have strong enough jaws to crush the hard bony outer skeleton of the starfish and eat the flesh underneath.

Sharks are carnivorous and may be found in all seas. They associate humans with food. Sharks do not usually live in fresh waters, but there are exceptions: the river shark and the bull shark. Most sharks are found in 2,000 meters (7,000 ft) level, in warm environments, but they can also be seen in shallow waters.

Lemon shark, bonnet heads, dusky sharks, white and black tip reef sharks, and a baby bull shark! And a 8 foot moray eel curled up in the rocks you can't see. Two japanese leopard sharks were just taken out previous to the video.

Most sharks are cold-blooded. Some, like the Mako and the Great white shark, are partially warmblooded (they are endotherms). Cold blooded although if you've ever seen a Great White Shark hunt sea lions you'd be thinking they would have to be hotblooded. Actually the Salmon Shark is a warm blooded shark.

The Tiger Shark is the 3nd most aggressive shark. It has been know to have human body parts in the stomach. These sharks generally hunt at night and will devour anything that comes in their way. 4. The Oceanic Whitetip Shark has been known to follow ships and wait for a meal. Most aggressive shark towards humans.

Although all sharks are carnivorous, meaning they eat other animals, nurse sharks fall into a category of laid back, easy-going sharks that prefer to swim awhile and then rest awhile. Nurse sharks (Ginglymostoma cirratum) may in fact be considered the couch potato of the shark world.

The Bluntnose sixgill shark, Hexanchus griseus, is the ninth biggest shark in the world and is often referred to as a cow shark. The Bluntnose sixgill shark is a member of the Hexanchidae family; most of their relatives are extinct. These sharks skin color's can range from tan/brown to nearly black in color.

Tiger Sharks are incredibly impressive and large sharks which can reach a length of more than six meters. Tiger Sharks have the broadest food spectrum of all sharks. Apart from sea turtles, seals, sea lions, other sharks, whales, and sea birds, they also eat invertebrates, garbage and carrion.

1) that sharks attack surfers because of 'mistaken identification' 2)that sharks are man eaters and are out to get us 3)that a shark can tow away a boat 4)dogs attract sharks â¦5)sharks can detect a pin head amount of blood from up to mile away.

Some shark species, like the great white shark, attack and surprise their prey, usually seals and sea lions, from below. Species that dwell on the ocean floor have developed the ability to bottom-feed.

Shark. Shark The huge water fish is fondly eaten for its fins. Shark is common seafood in many countries including Japan and Australia. Shark fish is eaten in fish and chips in parts of New Zealand and Australia. In many countries, shark meat is sold under the common name of fish.

The gills are crucial to a sharks breathing system. By opening its mouth, water is drawn into the shark. The open mouth gives the appearance of a smile in many sharks. When a shark closes its mouth, the water is forced over its gills and the tiny blood vessels in shark gills absorb oxygen from the water.

Broadcasting. 1  1988: The first ever Shark Week premiered in July 1988, with the first show to air being Caged in Fear. 2  1989: Due to the success of the first Shark Week, Discovery decided to continue it. 3  1990: New shows that aired included Shark!: The World of Sharks and Barracuda and Sharks: Hunters of the Oceans.

Bull sharks, however, can swim up fresh water rivers rather easily. Most experts believe the Matawan shark was a bull shark. Officially, bull sharks have made it up the Mississippi as far as Illinois. In the town of Alton, Illinois, which is above St. Louis, two commercial fisherman caught a bull shark in the river.

But as for how many sharks die pe â¦ r year over 73 million sharks die per year just for their fins then are thrown back in the water and left to drown or bleed to death. when you add everything together more than 80million sharks die per year. Sharks cant reproduce as fast as they are being killed. Please help save the sharks. www.uwiu.net Support us!

The taxonomy of sharks and rays. The taxonomy of sharks and rays is a subject that remains in hot debate. Although the majority of elasmobranch families have been nailed down there will always be individual species that don't quite fit the characteristics of their sibling species.

The Most Dangerous Beaches for Shark Attacks in the U.S. Let's get this out of the way: shark attacks are extremely rare. The odds that you'll be attacked by a shark are precisely one in 11.5 million, according to the University of Florida's International Shark Attack File. Click Here to see the Complete List of Places You're Most Likely to be Attacked by a Shark in the U.S.

Interesting Facts About Shark: 1  Sharks do not have roots in their teeth for attachment to the gums. 2  All sharks lose one tooth a week, at least. 3  Most of the times shark teeth are stuck to their prey or come out while eating. So they lose their teeth. 4  In most of the animals, only lower jaw can move. But in sharks, both jaws are movable.

Sharks range in lifestyle and demeanor from the fast, aggressive shortfin mako to the more relaxed and sedentary bottom dwelling sharks. Although all sharks are carnivorous, meaning they eat other animals, nurse sharks fall into a category of laid back, easy-going sharks that prefer to swim awhile and then rest awhile.

Shark Within A Shark Picture By ORB LAB Will Blow Your Mind (PHOTO) Sharkception! Researchers at the University of Delaware's ORB LAB posted this photo of a shark within a shark on Facebook in late July. The lab memebers were using a small fish called a menhaden as bait to recapture sharks they had previously tagged.

1 Many Everyday Activities Are More Dangerous Than Diving With Sharks. 2  Deadly Boating and Driving Accidents Are More Likely Than Deadly Shark Attacks. 3  Even Shark-Related Injuries Are Very Rare. 4  Further Reduce the Risk of a Shark Attack While Diving. 5  The Take-Home Message About Diving With Sharks.

Blood and human waste attract sharks. 6. Sharks are creatures of habit. Do not swim in areas where a shark attack has recently occurred, since the same shark, or others, may still frequent the spot. 5. Try to swim on sunny, clear days. Foggy mornings and dusk may cause a shark to confuse you with prey. 4.

Some species are ovoviviparous. In these species, the eggs are not laid until they have absorbed the yolk sac, developed and hatched, and then the female gives birth to young that look like miniature sharks. These young sharks get their nourishment from the yolk sac.

It is the only known surviving species of its genus Carcharodon, and is ranked first in having the most recorded shark bite incidents on humans. The IUCN list the great white shark as a vulnerable species, while it is included in Appendix II of CITES.

Almost all sharks have sub-terminal mouths except for the whale shark and megamouth sharks. Skimming above the sandy surface, the sharks pluck up crabs, clam siphons, fish eggs, and the burrowing, hot-dog-shaped fat innkeeper worm. As leopard sharks get older, they start eating more fish and fewer crabs.

Fishermen catch 4m bull shark in Sydney Harbour (â¦. 150kg shark caught in Sydney Harbour. Fishermen fight 90minutes to catch britain's biggest shark. The four metre bull shark was the third shark to take the bait from his line, but it was the only one he managed to keep on the end of the hook.

It looks very similar to a mako shark, and use to be categorized as a mako shark. Many people, out of habit, still call these fossil teeth mako sharks. 2 White Shark-Carcharodon hastalis [narrow form] - Calvert Cliffs of Maryland. This is a nice 2 upper Extinct White shark that I found in a clay block.

Shark Week. Shark Week is an annual, week-long TV programming block created by Tom Golden at the Discovery Channel, which features shark-based programming. Shark Week originally premiered on July 17, 1988. Featured annually, in July and/or early August, it was originally devoted to conservation efforts and correcting misconceptions about sharks.

The smallest shark, the dwarf shark, is only 25 cm (10 inches) long. The basking shark is the largest shark in Atlantic Canada, routinely reaching lengths of 8-9 metres. The largest confirmed great white shark caught in Canada was more than 5 metres long. It was caught off of PEI in 1983.

The Bull Shark (Carcharhinus leucas) is a common tropical and subtropical species that occurs in marine, estuarine and freshwater. It is the only species of shark that can exist for long periods in freshwater and penetrates long distances up large rivers.

The spiny dogfish is one of the most abundant species of shark in the world is also commonly known as the piked dogfish, the codshark and the thorndog.he spiny dogfish also has large eyes and a short snout and unlike many other species of shark, the spiny dogfish does has have an anal fin.

Sharks' eyes are protected when attacking prey. Also unlike humans, shark eyelids serve to protect the eye when attacking prey. Some sharks have a nictating membrane, or a clear membrane that covers and protects the eye when a shark bites its prey. Sharks like the Great White, lacking a nictating membrane, roll their pupils back in their heads for protection when feeding.

Shark Attack 2 ( 2001 ) - The mutant sharks from Dr. Craven's experiments in Shark Attack 1 are back, this time choosing Cape Town, South Africa as their hunting ground. Shark Attack 3 : Megalodon ( 2002 ) - When two researchers discover a Massive shark's tooth off the Mexican coast their worst fears surface.

According to the International Shark Attack File, the Tiger shark ranks No. 2 behind the white shark in the number of reported attacks on humans. The shark-monitoring group notes that the animal's large size and voraciousness qualify it as a formidable ocean predator. Surfers and swimmers need to know that Tiger sharks tend to be both curious and aggressive when they spot humans in the water.

Answers. Best Answer: Sharks are found all around the globe from the north to the south in all seas, they generally do not live in freshwater except for a few exceptions like the bull shark and the river sharks which can swim both in seawater and freshwater.hough depending on the climate they live in greatly depends on how they behave. the greenland shark one of the biggest sharks in the world, live up north, but it moves really slowly conserving energy.

Zebra sharks are most commonly found in the Indian and South Pacific oceans. Zebra sharks can grow to nearly 3 meters in length and can get to be 30 years old in the wild. Zebra sharks that are kept in captivity generally do not exceed 15 years of age. Zebra sharks can be identified by the yellow spots that are present on the back of the zebra shark.

Are sharks really dangerous? After all, you're more likely to be killed by lightning or faulty wiring on your Christmas tree than by a shark [source: McCarthy]. Death by bee sting occurs far more often than death by shark [source: Burgess]. In the water, you're more apt to drown or be injured by your own surfboard than be hurt by a shark [source: Martin]. Researchers love to throw around statistics like these to redeem sharks.

common frilled shark (Chlamydoselachus anguineus) Where. The common frilled shark (Chlamydoselachus anguineus), an extremely primitive species native to all oceans of the world, has the longest recorded gestation period (pregnancy) of any animal species, namely 3.5 years.

This seemed to demonstrate that the shark's other senses weren't as developed as the sense of smell. Further research demonstrated that sharks actually have several acute senses, but that they depend on all of them working together. When you take one away, it significantly hinders the shark's hunting ability. The shark's nose is definitely one of its most impressive (and prominent) features. As the shark moves, water flows through two forward facing nostrils, positioned along the sides of the snout.

Sharks have 5 or more rows of teeth. Humans only have 20 baby teeth and 32 adult teeth. Sharks can re-grow teeth. Humans only get 2 sets (milk teeth and permanent teeth). Sharks have serrated edges on their teeth. Shark teeth are not attached to the jaw. Humans bite and chew with their teeth. Sharks use their teeth to rip their prey apart.

Types of attacks. Shark attack indices use different criteria to determine if an attack was provoked or unprovoked.. When considered from the shark's point of view, attacks on humans who are perceived as a threat to the shark or a competitor to its food source are all provoked attacks.

Sharks can really sniff out their prey, and this is how they do it. 1  Sharks in Acidic Waters Avoid Smell of Food. 2  Ancient Arctic Sharks Tolerated Brackish Water 50 Million Years Ago. ' 3 Shark's Eye' View: Witnessing the Life of a Top Predator. 4  White Shark Diets Show Surprising Variability, Vary With Age and Among Individuals.

Surprising data from a tag tracking a great white shark off of Australia could be evidence of cannibalism. A great white shark cruises off the Australian coast. Speculation that a great white shark that went missing off Australia may have been devoured by another great white is making the Internet rounds this week, raising the question of whether it was an instance of shark cannibalism. 6 Shark Attack Myths from 'The Shallows'.

Fossil Shark Teeth are one of the few remains we have of ancient sharks. Because their skeletons are made of cartilage instead of bone, the teeth are the only parts that were left behind.Shark like fish have been present in the oceans of the world since the late Paleozoic Era.ossil Shark Teeth are one of the few remains we have of ancient sharks. Because their skeletons are made of cartilage instead of bone, the teeth are the only parts that were left behind. Shark like fish have been present in the oceans of the world since the late Paleozoic Era.

Sharks fertilize the egg within the female body which is unique for a bony fish [4]. The male shark has a sex organ called claspers which transfers sperm into the female shark in order to fertilize eggs [4]. The embryo can spend up to two years developing inside the mother [4]. Sharks will sometimes give birth directly to baby sharks or release their eggs on the ocean bed [4].

The longest-living shark is the spiny dogfish, which can live from 75 to 100 years, while its cousin, the blue shark, only lives 15 to 16 years in the wild. Great white sharks live between 25 and 30 years. Tiger sharks live for an average of 27 years, but have been known to live to be 50. When sharks are taken into captivity, their lifespan can decrease up to 50 percent.

Myth 5: Sharks Can Detect a Single Drop of Blood in the Ocean! Sharks are often portrayed as having an almost supernatural sense of smell. However, reports that sharks can smell a single drop of blood in a vast ocean are greatly exaggerated. While some sharks can detect blood at one part per million, that hardly qualifies as the entire ocean. Sharks do, however, have an acute sense of smell and a sensitive olfactory system--much more so than humans.

Sharks and the dogfish Biologically, sharks are fish belonging to the phylum Chordata and the subphylum Vertebrata. However, sharks and their relatives, the rays and skates, are unique amongst fish in that their skeletons are made entirely of cartilage, not bone.harks and the dogfish Biologically, sharks are fish belonging to the phylum Chordata and the subphylum Vertebrata. However, sharks and their relatives, the rays and skates, are unique amongst fish in that their skeletons are made entirely of cartilage, not bone.

Sharks' eyes are built just like ours. In the late 1960s, researchers discovered that shark eyes have duplex retinas, or retinas containing both rod and cone cells. Rods enable the shark to see light and darkness, while cones allow for the detection of color (though scientists are still unsure how sharks interpret colors). The eye structure of a shark is similar to other vertebrates in that it contains a cornea, lens, retina, pupil and iris.

Mating and Reproduction of Sharks. Habitat Evolution Features Anatomy Senses Reproduction. Our knowledge of the many different types of reproductive strategies of sharks is still limited. This variety is precisely why it is difficult to make a certain generalization on their reproductive methods, although these are what make sharks so successful.

Examination of juvenile White Shark stomach contents revealed numerous prey species including; invertebrates, benthic sharks and rays, and fishes. There was one prey species in particular that was frequently found in the stomachs that were examined the California Grunion (Leuresthes tenuis) (see grunion) .

There Are 10 Species of Hammerhead Sharks The great hammerhead shark is just one of 10 species in the hammerhead group. Others are the bonnethead, mallethead, scalloped hammerhead, scoophead, smalleye hammerhead, smooth hammerhead, whitefin hammerhead, winghead, and the recently discovered Carolina hammerhead.

The open ocean, or pelagic zone, is an area where you'll find many of the largest ocean species include everything from jellyfish to sharks. The open ocean, or pelagic zone, is an area where you'll find many of the largest ocean species include everything from jellyfish to sharks. The Open Ocean Search the site GO

The megamouth shark is an extremely rare and unusual species. When the first megamouth was captured in 1976, a new shark family, genus and species, Megachasma pelagios, had to be instituted. Only a few have ever been seen, with 40 specimens known to have been caught or sighted as of 2008, ranging through the Indian, Pacific and Atlantic Oceans.

Also unlike other animal orders, the size and function of the eye can vary greatly amongst shark species. Sharks are uniquely and amazingly adapted to their in environments in every way including eyesight. Lisney and Collin (2007) conducted a study on the absolute and relative eye size of 46 elasmobranch species.

Offspring of this shark, sport reddish-brown spots on the tail and the posterior end of the body. These spots fade as they grow. The length of an average sand tiger shark can range between 1.2 to 2.7 meters, but the longest specimen had a body length of 3.2 meters. These sharks weigh between 90 to 160 kilograms. One of the distinguishing features of this shark, is that they are the only known sharks, that swim to the surface to take in air.

5 of the WORLD'S BIGGEST GREAT WHITE SHARKS ever caught! The video features 5 of the biggest sharks in the world ever caught -- including the biggest shark ever! Great White Shark 5th largest. Date: 1992. Location: South Australia. Caught by: Dion Gilmore. Length: 5.2m (17ft). Weight: 1520kg (3351lb). Additional info: Shark caught during a Daiwa tackle promotion.

Most sharks are a blue/grey color with some white underneath. A few a brown or rust colored. Some sharks have stripes or spots on them which are black or even yellow. The zeâ¦bra shak is white with black spots. The goblin shark is pink and the swell shark is orange with black spots and epalette shark is orange and has one big black spot near the head surrounded by a band of white. 47 people found this useful.

The typical lifespan in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Sandbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.andbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.

The type of tooth that a shark has depends on its diet and feeding habits. In some formations, shark's teeth are a common fossil. These fossils can be analyzed for information on shark evolution and biology; they are often the only part of the shark to be fossilized.

The greenland shark for example is thought to live up to 200 years. But as thie image below shows it varies on the species and because of our lack of data for most species we only have estimates and for some we dont even have an idea, Most sharks are believed to live at least 20 to 30 years. Views Â· View Upvotes.

Catsharks are ground sharks of the family Scyliorhinidae. They are one of the largest families of sharks with around 160 species placed in 17 genera. Although they are generally known as catsharks, many species are commonly called dogfish or gato. They feed on benthic invertebrates and smaller fish. Catsharks are not harmful to humans.

No specific management or conservation programmes are known for this species. It is managed in the U.S. east coast shark fisheries as part of the large coastal groups of species. The current quota for this group is 1,285 t/year (1997), but Bull Sharks make up only small percentage of this group (see above).

Feeding Habits. Sand tiger sharks prefer to feed on fish such as herring, snappers/Schnapper, eels, mackerels or other fish, and in rare cases, some smaller shark species. According to reports this species also goes hunting together, driving together swarms of fish and thus making them easy prey.

As the top predators in the ocean, great white sharks (Carcharodon carcharias) face only one real threat to their survival: us. The assaults are many. By-catch: the accidental killing of sharks by fishermen's longlines and trawlers.Illegal poaching: selling shark fins for soup.s the top predators in the ocean, great white sharks (Carcharodon carcharias) face only one real threat to their survival: us. The assaults are many. By-catch: the accidental killing of sharks by fishermen's longlines and trawlers.

The fins are added for their texture. Not all sharks are edible. Most commonly consumed shark varieties are dogfishes, catsharks, sand sharks, makos, and smoothhounds. Mako fish is a delicacy for their meat is salmon-coloured having a very fine quality. Mako liver is used to prepare oil that is rich in vitamins. The skin of the shark is made into leather and the fins are added to shark fin soup. However, the meat can be eaten with its nutrient value only when cooked properly.

Sharks usually attack on sight, but not always. If a shark keeps its distance, it is only curious. However, if it starts to circle inwards and begin sudden movements, then the likelihood of an attack is greatly increased.Shark attacks are rare, and the likelihood of a fatal attack is even rarer.he shark meat must be cooked before consumption in order to avoid contracting sickness. To cook the raw shark meat, the player must first hack at the shark until it yields the meat before dragging the pieces over a lit fire.

In the warmer waters of the Central and Western Pacific, bigeye and pelagic thresher sharks are more common. A thresher shark was seen on the live video feed from one of the ROVs monitoring BP's Macondo oil well blowout in the Gulf of Mexico.s a result, the long-tailed or common thresher shark, Alopias vulpinus, is also known as the fox shark. The common name is derived from a distinctive, thresher-like tail or caudal fin which can be as long as the body of the shark itself.

How do sharks smell blood in the water? they can't really see in the water. But think of it like this , let's say if you were blind folded and you were pretending that you were a shark. and you sat a plate of pizza â¦on the table you can smell that pizza like a shark can smell blood. Making the world better, one answer at a time. they can't really see in the water. But think of it like this , let's say if you were blind folded and you were pretending that you were a shark. and you sat a plate of pizza â¦on the table you can smell that pizza like a shark can smell blood.

Whale sharks are the largest known species of fish, growing to 12.5 meters and can weigh as much as 79,000 pounds. The whale sharks here in La Paz are often 7-10 meters in length. The fish can live as much as 70 years. The species originated about 60 million years ago.

A study of 264 Frilled Sharks from Saruga Bay, Japan, found that here this species breeds year-round, producing an average litter of 6 pups, each about 22 inches (55 centimetres) long. It is hardly surprising that Frilled Shark litters are typically rather small, given this species slender build.

A team of scientists and undergraduate students have analyzed the body size for 25 marine species, including whales, sharks, squids, and other ocean giants. A team of scientists and undergraduate students have analyzed the body size for 25 marine species, including whales, sharks, squids, and other ocean giants.

Sharks have adapted to living in a wide range of aquatic habitats at various temperatures. While some species inhabit shallow, coastal regions, others live in deep waters, on the ocean floor and in the open ocean. Some species, like the bull shark, are even known to swim in salt, fresh and brackish waters.

Summary. In 1998, Jonathan made a remarkable discovery about Basking sharks, the second largest fish on Earth. While diving with Basking sharks in the frigid waters of the Bay of Fundy, Jonathan saw parasitic lampreys on the backs of the sharks.ummary. In 1998, Jonathan made a remarkable discovery about Basking sharks, the second largest fish on Earth. While diving with Basking sharks in the frigid waters of the Bay of Fundy, Jonathan saw parasitic lampreys on the backs of the sharks.

Meet the Whale Shark's Closest Relatives. WHALE SHARK. Whale sharks are members of the carpetshark family. Some carpetsharks are flat and live on the ocean floor. Some look more like snakes than sharks. Many are also just a foot long, yet the biggest fish in the world, the whale shark, is also a carpetshark. All carpetsharks have several features in common: two spineless dorsal fins, mouths in front of their eyes, and odd-looking sensory attachments called barbels that most often extend from their nostrils or jaws.

Across the U.S., there have been 1,022 attacks since 1670 and a total of 36 deaths. There has never been a fatal attack in Palm Beach County, where the sharks have been seen this week. Most shark attacks across the state occur in July, August, September and October. 'That's 1,000 sharks per square kilometer. If you were a swimmer, you would probably be within 60 feet of a shark.'. The most commonly spotted sharks are spinners and blacktips, but the team has also observed hammerheads, tigers, lemons and bulls. They will distribute along the East Coast as far north as North Carolina, he said.

Shark Vacuum Contact Address. The address of Shark Vacuum Contact is 1210 Washington Street, West Newton, Massachusetts 02465, United States. The postal and official address, email address and phone number (helpline) of Shark Vacuum Contact Service Center and Shark Vacuum Contact customer service number is given below. The helpline of Shark Vacuum Contact customer service number may or may not be toll free.

Sharks have adapted to living in a wide range of aquatic habitats at various temperatures. While some species inhabit shallow, coastal regions, others live in deep waters, on the ocean floor and in the open ocean. Some species, like the bull shark, are even known to swim in salt, fresh and brackish waters. Behavior

Types of Shark Cartilage. Shark Cartilage is available in powder, capsules or pressed into tablets. Shark Cartilage capsules appeal to many consumers because they are more convenient and because many people find the taste and smell of shark cartilage powder unpleasant.

Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (40 ft) in length.

Since that time, sharks have diversified into over 400 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft).

It is perfectly legal to BORROW from a loan shark; it is the interest rates charged by the loan shark which are illegal. They are called usury. If you don't pay, the negative marks will be on your body.denlp96 Â· 4 years ago.eport Abuse. I've never heard of anyone that got in trouble for BORROWING from a loan shark. Loaning money out at extremely high interest rates is illegal (what a loan shark does), and busting your knee caps for not paying on time is also illegal (what the loan shark's goons does).

Blacktip Reef Sharks are the centerpiece of the new Blacktip Reef Exhibit at National Aquarium, Baltimore. Blacktip sharks grow to about 6 feet and are commonly found in tropical and subtropical waters.Blacktip Reef Shark Cam is hosted at National Aquarium, Baltimore.lacktip Reef Sharks are the centerpiece of the new Blacktip Reef Exhibit at National Aquarium, Baltimore. Blacktip sharks grow to about 6 feet and are commonly found in tropical and subtropical waters.

According to the Shark Trust conservation organization, sharks hear sounds with frequencies ranging from 10 hertz to 800 hertz, and they are particularly responsive to sounds lower than 375 hertz. For comparison, 10 hertz is 1.5 octaves below the lowest note on a piano [source: PBS]. Humans, on the other hand, hear sounds ranging from 25 hertz to 16,000 hertz [source: Shark Trust]. Sharks can hear sounds much lower than we can, while we hear sounds much higher than sharks.

Caribbean Reef Shark: This is the most commonly seen shark in the Caribbean. It is usually 6.5-8 feet, or 2-2.5 meters, long. Look for dusky-colored fins that do not have any prominent markings, as well as a coloration that is dark grey or grey-brown on the top of the body and white or white-yellow underneath.iger Sharks: Another large shark, capable of growing to a length of over 16 feet, or 5 meters, the Tiger Shark can be found in the Caribbean and other warm waters around the world.

The sea monsters terrorized the oceans from about 16 million to 2 million years ago. Though that may seem like a long reign, other shark species have survived for 50 million years or more without significant changes in body plan, Pimiento said. This species is not as successful as we think, Pimiento said. A lot of sharks that were alive during the time of Megalodon are still around today..

Whale shark pups are about 2 feet long when born. Scientists are not sure how long whale sharks live, but based on their large size and their age at first reproduction (around 30 years old for males) it is thought that whale sharks may live at least 100-150 years.ne of the most notable facts about whale sharks is that they are the world's largest fish. At a maximum length of about 65 feet and weight of 75,000 pounds, a whale shark's size rivals that of large whales.

While people tend to imagine all sharks as being active hunters of other animals, in fact they occupy a huge range of ecological niches, from the huge, planktivorous Basking and Whale sharks to the bottom dwelling Carpet sharks, and probably the ultimate pelagic predator; the Great White shark.asking sharks and other filter feeders like the Whale shark suck water in through their mouths as they swim and purge it through their gill slits, filtering out the food in each mouthful, occupying a similar niche to the baleen whales and the Manta ray.

The tiger shark will travel a long way for a bite to eat; one study found that the tiger shark swam about 30 miles to 40 miles (48 km to 64 km) a day looking for food [source: Tennesen ].It also doesn't appear that tiger sharks have a pattern of particular feeding places.he tiger shark will travel a long way for a bite to eat; one study found that the tiger shark swam about 30 miles to 40 miles (48 km to 64 km) a day looking for food [source: Tennesen ].

Shark Tank. Shark Tank is an American reality television series that premiered on August 9, 2009, on ABC. The show is a franchise of the international format Dragons' Den, which originated in Japan in 2001. Shark Tank shows aspiring entrepreneur-contestants as they make business presentations to a panel of shark investors, who then choose whether to invest. Shark Tank has been a ratings success in its time slot and has won the Primetime Emmy Award for Outstanding Structured Reality Program four times, in

Currently, the Reef comprises around 400 different varieties of coral reefs and about 400-500 types of marine species, including sharks, sting rays, and manta rays. About twenty six species of algae and seven species of seagrasses are present in the clear, blue waters.

Facts and Information about Hammerhead Sharks. There are 5 species of hammerhead shark found along the Eastern United States, S. lewini (Scalloped hammerhead), S. cf. S. media (Scoophead hammerhead), S. zygaena (smooth hammerhead), S. tiburo (Bonnethead), and the new species S. gilberti (Carolina hammerhead).

Loan sharking may refer to both legal and illegal activities. A loan shark is a person or body who offers loans at extremely high interest rates.The term usually refers to illegal activity, but may also refer to predatory lending with extremely high interest rates such as payday or title loans.Loan sharks sometimes enforce repayment by blackmail or threats of violence.oan sharking may refer to both legal and illegal activities. A loan shark is a person or body who offers loans at extremely high interest rates.

1 As of v0.03.H2, the spawn chance of a tiger shark has been adjusted from 100% down to 30%. 2  There is a bug currently located in the game: once a tiger shark latches onto the player, it will drag the player back to the island. A tiger shark can be killed with exactly 10 hits from an axe. 2  As of v0.03.H2, the spawn chance of a tiger shark has been adjusted from 100% down to 30%. 3  There is a bug currently located in the game: once a tiger shark latches onto the player, it will drag the player back to the island.

Shark Cage Diving Located in Port Lincoln, South Australia. Port Lincoln is the only place you can cage dive with Great White Sharks in Australia. More people choose to cage dive with us than any other Shark Cage Diving operator in Australia! Calypso Star Charters is fully licensed by the Department of Environment, Water and Natural Resources. We are privileged to be the only one-day shark cage diving operator who is permitted to use natural fish berley to attract the Great White Sharks to our boat at the Neptune Islands Marine Park.

Credit: NOAA. MYTH: Sharks don't get cancer. FACT: Sharks can get cancer, and other types of disease, but it is thought that they might have lower incidence of disease than other animals. This myth is based on sharks having skeletons of cartilage, which has led to a demand for shark cartilage products.

Most people have little difficulty recognizing a shark when they see one. Yet sharks are an incredibly diverse group of fishes, and unifying them all under a single definition is not as simple as many imagine.Sharks are, of course, most famous (and infamous) for their teeth.What makes shark teeth special is that they are produced and shed serially, rotating forward as though riding on a kind of dental conveyer belt.ike most fishes, sharks have two sets of paired fins (pectoral and pelvic, corresponding to arms and legs in humans) but-unlike those of bony fishes they are supported by soft, unsegmented rays called  ceratotrichia  (used in making shark-fin soup).

The body of a tiger shark can be around 3-5 meters long which is about 9.8-16.4 feet long. Some can get even bigger than that, for instance one tiger shark was found to be 55 meters long which is about 18 feet long.As for weight, a tiger shark will usually weigh around 385-635kg which is about 849-1400 pounds.he body of a tiger shark can be around 3-5 meters long which is about 9.8-16.4 feet long. Some can get even bigger than that, for instance one tiger shark was found to be 55 meters long which is about 18 feet long.

Distribution: Off the Atlantic coast of the United States tiger sharks are found from Cape Cod, Massachusetts, to the Gulf of Mexico and Caribbean Sea. Off the Pacific coast tiger sharks are found from southern California southward.In the western central Pacific, tiger sharks are found in the Hawaiian, Solomon, and Marshall Islands.istribution: Off the Atlantic coast of the United States tiger sharks are found from Cape Cod, Massachusetts, to the Gulf of Mexico and Caribbean Sea. Off the Pacific coast tiger sharks are found from southern California southward.

The typical lifespan in the wild for Hammerhead Sharks is from 20 to 30 years approximately. Sandbar sharks or Brown sharks are considered to live between 20 and 30 years. Research made by Joung (2004) identified to be about 20 years of age.ome scientists believe that the life expectancy of the Great White Sharks is around 30 years (Levine, 1988) but other research indicates that they can reach up to 40 years. The lifespan of Tiger Sharks in the wild is believed to be 27 years in average, although some may live up to 50 years of age.