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One major factor in how mako sharks are able to move so fast is the unique structure of their skin, especially around the flank and fin regions of their bodies.
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Northern river sharks live in freshwater along Northern Australia and Papua New Guinea
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Oceanic whitetips are believe to have killed more people than great white sharks
Most fish do not have eyelids. Sharks are an exception to this.
A Lemon Shark lying on the sand in the Bahamas. Lemon sharks are named for their yellow-brown skin that helps them camouflage in the sandy, tropical waters they inhabit.
The world's largest predatory fish, great white sharks commonly weigh a few thousand pounds.
NOAANMFSMississippi Laboratory, CC BY 3.0 , via Wikimedia Commons
The lantern shark, which is only found in the deep sea, is one of quite a few species of sharks that emit light.
Deadliest Animal in the World: Sharks
A Great white shark, Carcharodon carcharias, jumping out of the water. Great whites are the world's largest predatory fish.
By sending in a robot to document, scientists discovered that Pacific sleeper sharks have taken up residency in a volcano.
Adapting to the lack of reproduction opportunities in captivity, some sharks have been found to reproduce asexually.
SEFSC Pascagoula Laboratory; Collection of Brandi Noble, NOAA/NMFS/SEFSC, Public domain, via Wikimedia Commons
Though it can be found in many areas around the world, the spined pygmy shark rarely approaches the surface of the water.
Found on the coastal surface waters of all major oceans, the great white shark has no known natural predators. While humans are not its preferred prey, the great white shark is responsible for the largest number of unprovoked shark attacks on humans.
close-up of Sixgill Shark
close-up of Sixgill Shark
The mako shark is considered dangerous to humans because of its speed — it can attack aggressively and quickly. It has even been known to "jump" into fishing boats!
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Megamouth shark, Megachasma pelagios, at Toba Aquarium, Japan
Greenland sharks aren't adults until they're around 150 years old, and they keep growing their whole lives at a rate of one centimeter a year.
Biggest Shark: Great White wildestanimal/Shutterstock.com
Underwater view of a great white shark during a cage diving trip at Guadalupe Island, Mexico. Although it is not the largest of all sharks, the great white is the largest predatory shark.
Biggest Shark: Great Hammerhead frantisekhojdysz/Shutterstock.com
This shark's unusual name comes from the unusual shape of its head, an amazing piece of anatomy built to maximize the fish's ability to find its favorite meal: stingrays.
A pelagic thresher shark, Alopias pelagicus, swims by a coral reef in the Philippines.
Silhouettes of people in aquarium looking at a big shark through the glass. Sharks have special electroreceptor organs that allow the shark to sense electromagnetic fields and temperature shifts in the ocean.
Fastest Sea Animal: Mako Shark Al McGlashan/Shutterstock.com
A huge Mako Shark swimming underwater offshore. The Mako Shark is not only the fastest shark in the water but one of the fastest creatures on earth
Longest Tail: The Common Thresher Shark
The most notable feature of the thresher shark is the long, whip-like upper lobe of their tail, which is known as the caudal fin.
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