Sharks come in all sizes, from the tiny spined pygmy to the 40-foot whale shark, but the great white is hands-down the most famous, thanks in no small part to a little movie called "Jaws."
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Porbeagles are related to great whites, but while they're also athletic killers, they're smaller and far less ferocious. And what's with the funny dog name?
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Decades before Discovery started its wildly successful Shark Week, Americans were transfixed by stories of shark-infested waters.
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Never mind the penis on its head, this weird ghost shark was filmed live for the first time, and hanging out in the wrong hemisphere.
In the past decade, several two-headed shark fetuses have been discovered. Is there something going on in the oceans we should know about?
The eel-like Orthacanthus, a precursor to modern sharks, may have turned to cannibalizing its own babies in times of crisis.
Think science has sharks all figured out? Think again. We still have so many unanswered questions about the aquatic marvels.
A shark is coming at you. It opens its mouth wide, baring teeth. Will you be able to reach around and poke it in the eyes without losing an arm?
If it works for bears, can it work for sharks? If you're swimming alone, it might not be the best idea. But if you're surrounded by scores of thrashing swimmers, playing dead might help you escape the shark's notice.
Burning ghost peppers is known to ward off elephants. Could chili peppers stave off sharks? The Aztecs thought so and dragged the peppers from strings through the ocean water.