Feared by most, loved my some and hunted by many, sharks are one of the most mysterious groups of creatures roaming the Earth today. Defined as a fish with a full cartilaginous skeleton and a sleek, streamlined body, a shark can range in size from the two foot pygmy shark, to the colossal 50-foot whale shark. There are more than 250 different species of sharks currently identified, making it one of the most diverse animal genera on the planet. Sharks are found in every major body of saltwater in the world, but are more common in warmer waters. There are a small number of shark species that do thrive in fresh water, and certain sharks have been known to venture from their saltwater homes to major freshwater lakes and rivers. Most members of the Shark family are predatory, though some are more ferocious than others. Ironically, the largest of the shark species, the whale shark and basking shark, are virtually harmless plankton eaters. Sharks have an extraordinary sense of smell when it comes to hunting prey, and have been known to be able to sense visually undetectable amounts of animal blood dispersed into the water from considerable distances.
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Everything's Bigger in Texas: Ancient Supersize Shark Fossils Unearthed
An ancient shark found in New Mexico
October 16th, 2015
A mega shark that lived 300 million years ago would have made today's great whites look like shrimps, according to fossils of the beast unearthed in Jacksboro, Texas.
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Why Are People So Afraid of Sharks?
A shark's eye view of swimmers.
July 16th, 2015
Statistically speaking, sharks pose very little threat to humans. So why are people so afraid of the animals?
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Shark Attacks in North Carolina: 'Perfect Storm' May Be Causing Bloody Encounters
A shark sign at the beach.
June 29th, 2015
North Carolina's recent bevy of shark attacks are the result of many diverse factors, according to experts.
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8-Foot-Long Bull Shark Pulled from Potomac River
A bull shark.
September 4th, 2015
Think sharks only live in the ocean? Think again.
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Why Beached Great White Shark Was Such a Rare Sight
rescued great white shark
July 15th, 2015
A young, great white shark had a near-death experience when the retreating tide left it stranded on a beach in Cape Cod on Monday afternoon (July 13). Beachgoers spotted the giant fish writhing on the sand, and threw water on its gills to help it breathe.
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Texas Just Banned Sales of Shark Fin, Will Other States Follow?
Tiger sharks are stocky barrel-shaped sharks that can grow up to 11 feet in length. They are solitary predators and are known to hunt a wide variety of animals, including other sharks and sometimes humans. Tiger sharks get their name from the dark stripes
June 25th, 2015
One by one, states are deciding sharks are more important than soup.
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Did Sharks Really Kill That Cute Baby Dolphin?
The dead baby dolphin.
June 18th, 2015
A baby dolphin sounds cute, right? What about a baby dolphin torn apart by hungry sharks?
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Mako Shark Phones Home, Revealing Epic Journey
A longfin mako shark that was tagged by U.S.-Cuban scientists in February 2015.
August 31st, 2015
One of the toothy stars of "Shark Week" has just phoned home after five months at sea, revealing that this longfin mako shark was a prolific and deep-diving swimmer.
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Fin Count: Global Shark Census Will Aid Conservation
A shark bites the underwater video camera.
July 9th, 2015
Researchers from across the globe recently teamed up to accomplish what might seem like an impossible (and scary) task: counting as many of the ocean's sharks as possible.
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Shark-Mounted Cameras Reveal Predators' Deep-Sea Secrets
Large creatures, sharks
June 23rd, 2015
In a first-of-its-kind project using cameras mounted onto the fins of deep-sea sharks, researchers have made surprising discoveries about what keeps these mysterious creatures afloat.
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