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The Megalodon or "Big Tooth" is one of the biggest sharks in history. Their teeth are about 6 inches or 7. The Megalodon is a pretty big shark, it's about 59 feet long!  Today, it is extinct.

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Sharks have cartilage in their bodies which allows them to swim quickly and strike and/or attack quickly.

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Sharks today have ancestors that go all the way back to dinosaur times.

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Nurse sharks don't have to move to breath like other sharks.

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Sharks have many rows of backup teeth. Whenever one tooth is lost, another pops in place.

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Nurse sharks are the laziest of the sharks

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sharks have been alive since the dinosaurs and the have no bones except their jaws and teeth

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Sharks have rows of teeth which can replace a missing tooth in front of them!

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Sharks have row and rows of teeth so when they loose a tooth another one pops back into it's place.

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Megladons, which means big tooth is over 40 to 70 feet in length.

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Megladons, which means big tooth is over 40 to 70 feet in length.

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Nurse sharks are considered the laziest shark

while one of the most dangerous is the Great White Shark

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Sharks can smell a tiny drop of blood in 3 gallons of water from 25 miles a way. They are quite unique!

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Sharks can smell blood from up to 3 miles away.

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Sharks can smell one drop of blood in 25 gallons of water.

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Instead of bones, sharks have cartilage which is made of soft tissue and allows them to move swiftly across the ocean.

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Sharks can detect a drop of blood in 25 gallons of water.

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some people believe that the megladon shark is still in the waters and has not gone extinct yet.

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The megalodon is an ancient shark that is claimed to still be alive and megalodon translated means "Big tooth"

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sharks have many rows of teeth so if they lose one another one will pop up in the same place.

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The Mako Shark is one of the most dangerous sharks

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There are sharks with ancestors that trace all the way back to when dinosaurs were alive

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You can trace sharks history all the way back to dinosaur times. Just like a family tree.

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The nurse shark is a very lazy shark that can be 14 feet long.

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sharks today have ancestors that go all the way back to when Dinosaurs lived

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The some of most dangerous sharks are the
Tiger Shark
hammerhead
Great white
Mako shark
Bull Shark.

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Sharks can smell a single drop of blood in 25 gallons of water.

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Female sharks are usually larger than male sharks

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Megalodon is the name if the ancient sharks.

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People believe that Megladons, ancient sharks, were up to 40ft in length.

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Some sharks can smell a single drop of blood in 25 gallons of water from up to several miles away

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sharks have almost unlimted teeth

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Sharks' scientific name is Selachimorpha

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Sharks have many rows of teeth, so if they lose one, another replaces it

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Some sharks can have around 300 teeth.

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Sharks do not see the way that we do, and have only one wavelength-sensitive cone.This means that most sharks could potentially be 100% color blind.

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Megalodons are ancient sharks that are now extinct, but people still believe that they roam the ocean.

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sharks don't worry about losing teeth because they grow back easily

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sharks cannot run out of teeth

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Sharks bones are made of cartilage.

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Sharks have so many teeth(rows and rows), that if they lost one, another would pop into place.

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Sharks kill someone every 2 years

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Sharks have ancestors from all the way back to the dinosaur ages.

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there is a shark called a black tip because its fin has a black tip.

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sharks have many rows of teeth

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Ancient sharks are often called megalodons, and are believed to be up to 40 feet in length.

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What Causes Sharks to Attacks Humans?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. The "big three" species -- bull, tiger, and great white sharks --are big enough to do a lot of damage to a human and must be treated with respect and caution.Is There an Increase in the Number of Sharks and Attacks?In 2001, there were 76 recorded unprovoked shark attacks in the U.S., versus 86 in 2000. According to the International Shark Attack File, the numbers of shark bites from year-to-year seem to be directly associated with increased numbers of humans swimming, diving and surfing in the ocean. Some shark populations have been on the decline since the mid-1980s, when the commercial fishery for sharks became a booming industry. Current regulations are working to reverse the trend of declining shark populations in the U.S., although some species are still depleted, and to maintain the shark populations that are healthy.What is NOAA Fisheries' Role With Sharks?The National Marine Fisheries Service (NOAA Fisheries) manages the commercial and recreational shark fisheries in the Atlantic Ocean, including the Caribbean Sea and the Gulf of Mexico. In the Pacific Ocean, NOAA Fisheries works with regional fishery management councils and is developing shark management measures. The agency is mandated by Congress under the Magnuson-Stevens Fishery Conservation and Management Act to conduct stock assessments, monitor the species abundance of sharks, and implement fishery regulations that maximize the benefits of sharks as a resource for humans while also ensuring that we do not deplete shark populations. The United States began regulating shark fisheries in 1993. A new Fishery Management Plan that included sharks, swordfish, and tunas went into effect in 1999, and sharks have been regulated under a catch limit and quota system ever since.

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What Causes Sharks to Attacks Humans?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. The "big three" species -- bull, tiger, and great white sharks --are big enough to do a lot of damage to a human and must be treated with respect and caution.Is There an Increase in the Number of Sharks and Attacks?In 2001, there were 76 recorded unprovoked shark attacks in the U.S., versus 86 in 2000. According to the International Shark Attack File, the numbers of shark bites from year-to-year seem to be directly associated with increased numbers of humans swimming, diving and surfing in the ocean. Some shark populations have been on the decline since the mid-1980s, when the commercial fishery for sharks became a booming industry. Current regulations are working to reverse the trend of declining shark populations in the U.S., although some species are still depleted, and to maintain the shark populations that are healthy.What is NOAA Fisheries' Role With Sharks?The National Marine Fisheries Service (NOAA Fisheries) manages the commercial and recreational shark fisheries in the Atlantic Ocean, including the Caribbean Sea and the Gulf of Mexico. In the Pacific Ocean, NOAA Fisheries works with regional fishery management councils and is developing shark management measures. The agency is mandated by Congress under the Magnuson-Stevens Fishery Conservation and Management Act to conduct stock assessments, monitor the species abundance of sharks, and implement fishery regulations that maximize the benefits of sharks as a resource for humans while also ensuring that we do not deplete shark populations. The United States began regulating shark fisheries in 1993. A new Fishery Management Plan that included sharks, swordfish, and tunas went into effect in 1999, and sharks have been regulated under a catch limit and quota system ever since.

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Shark is big and deadly

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You are more likely to die by a vending machine than a shark.

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henever a shark loses a tooth, another tooth just pops right into place.

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sharks can hear fish swimming from over a mile away

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Sharks have rows and rows of teeth, whenever the shark losses a tooth another one pops right back into  tyhe spot where te tooth fell out.

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The smallest shark is the Dwarf Shark, which is about the length of the average man’s hand.

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the great white sharks are at the top of the food chain (sea animals) it has very few predators.

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Sharks also have a very acute sense of smell that allows them to detect blood in the water from miles away.Great whites are usually solitary animals but are occasionally spotted travelling in pairs.

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Shark bones have skeletons made of cartilage that is very flexible and strong.

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SHarks can smell a single drop of blood from up to 3 miles away

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sharks don' thave eyelids therefor they can not blink

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Sharks can smell a drop of blood 3 miles

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the dwarf shark is the smallest shark, with only a length of an average man sized hand.

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Sharks have skeletons made of cartilage that is very flexible and stro

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There where anches shark that swam in the ocean since the age of dinosaur called the shark megalodon.

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The megalodon is an ancient shark that i and megalodon translated means "Big tooth"

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There are 400 species of sharks.

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if sharks lose a tooth another pops out.

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every year sharks attack approximately 100 people per year on the other hand, humans kill 10's of millions of sharks each year

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Shark are very deadly and can smell human blood easy.

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sharks come from dinosaur age .

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sharks bones are made out of cartilage

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the bones are made of carotlig

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Most sharks must move to live

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A reason why sharks attack humans is when humans are surfing the shark mistakes the surf board and the humans lims look like a seal and seals being a sharks favoite meal the shark will attack the bord and the human which is why most surfers who get attacked have a shark bite on there bord.

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unlike humans, sharks dont sleep.

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Sharks can smell a drop of blood from a mile away, so if you cut our foot or something get out of the water before your shark food!!!

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sharks have alot of teeth and when one of those teeth fall out one will come i right after from all the other teeth .

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Shark can small blood up to 3 miles away in 25 gallon of water.

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Sharks can smell a small drop of blood from  25 miles away.

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nurse shark is the laziest shark

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Sharks are dangerous because they can smell blood from miles away.They also have alot of teeth, the video said if one of there teeth fall out a new on grows in.

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Sharks can smell a small drop of blood in 25 gallons of water

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Sharks can't sleep because if they stop moving they won't be able to breath, so what they do is half of their brain is asleep when their awake and the other half is asleep at night.

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There are nearly 500 species of sharks but only about a dozen are potentially dangerous to humans.

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Megalodon sharks are up to 40-70 feet long, megalodon is another word for "big tooth".

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Sharks can smell blood from a mile away and if it loses a tooth then another one shows up in it's place.

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Sharks attack people because they think we are seals

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a shark can sences a singale drop of blood in 25 gallons of water 3 miles away

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shars´s skeletons are made from cartliage.

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There are more than 465 known species of sharks living in our oceans today.

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Cartilage in the shark's body allows them to swim very fast.

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What Causes Sharks to Attacks Humans?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. The "big three" species -- bull, tiger, and great white sharks --are big enough to do a lot of damage to a human and must be treated with respect and caution.Is There an Increase in the Number of Sharks and Attacks?In 2001, there were 76 recorded unprovoked shark attacks in the U.S., versus 86 in 2000. According to the International Shark Attack File, the numbers of shark bites from year-to-year seem to be directly associated with increased numbers of humans swimming, diving and surfing in the ocean. Some shark populations have been on the decline since the mid-1980s, when the commercial fishery for sharks became a booming industry. Current regulations are working to reverse the trend of declining shark populations in the U.S., although some species are still depleted, and to maintain the shark populations that are healthy.What is NOAA Fisheries' Role With Sharks?The National Marine Fisheries Service (NOAA Fisheries) manages the commercial and recreational shark fisheries in the Atlantic Ocean, including the Caribbean Sea and the Gulf of Mexico. In the Pacific Ocean, NOAA Fisheries works with regional fishery management councils and is developing shark management measures. The agency is mandated by Congress under the Magnuson-Stevens Fishery Conservation and Management Act to conduct stock assessments, monitor the species abundance of sharks, and implement fishery regulations that maximize the benefits of sharks as a resource for humans while also ensuring that we do not deplete shark populations. The United States began regulating shark fisheries in 1993. A new Fishery Management Plan that included sharks, swordfish, and tunas went into effect in 1999, and sharks have been regulated under a catch limit and quota system ever since.
 

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if a shark losses a tooth then another one will pop out.

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Sharks instead of having bones like us they have cartiage to help the move and swim a lot faster to catch their food.

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Megladons, which means big tooth is over 40 to 70 feet in length

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Megladons, which means big tooth is over 40 to 70 feet in length

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Sharks have up to 50 rows of teeth

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You are more likely to die from a cow than a shark.

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sharks have many rows of teeth that pop back into place when one falls out.

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sharrrrrrrrrrks