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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Michael Phelps is racing a shark for TV glory. But does he have a fighting (or swimming) chance?
By Dave Roos Jul 21, 2017
Shark shocker! This 'virgin birth' is the first example of a shark switching from sexual to asexual reproduction.
By Jesslyn Shields Jan 27, 2017
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.
By Jesslyn Shields Dec 21, 2016
In the past decade, several two-headed shark fetuses have been discovered. Is there something going on in the oceans we should know about?
By Jesslyn Shields Nov 9, 2016
The eel-like Orthacanthus, a precursor to modern sharks, may have turned to cannibalizing its own babies in times of crisis.
By Christopher Hassiotis Aug 29, 2016
Think science has sharks all figured out? Think again. We still have so many unanswered questions about the aquatic marvels.
By Jesslyn Shields Aug 24, 2016
The most remote islands in a remote archipelago hosts a huge biomass of the ocean's largest predators — and that's a good thing.
By Christopher Hassiotis May 12, 2016
People are going to go into the ocean. Sharks are already in the ocean. What can we do to help minimize problematic encounters? Maybe it's time to send in the drones.
By Karen Kirkpatrick Dec 31, 2015
Most of us would take to the seas a bit easier without any hammerheads, blacktips or bull sharks patrolling the waters below. The truth is, however, sharks help maintain a balanced ecosystem.
By Chris Opfer
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?
By Cristen Conger
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.
Sharks scare us to death. What scares them? Magnets. Researchers have tossed magnets in the water and watched the sharks dart away. But what could be so repugnant about a magnet?
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.
It's scary enough to imagine a shark's toothy jaw snapping at your half-submerged body in the ocean. But the actual impact of its massive mouth clamping down? Surprisingly wimpy.
By Josh Clark
If your ears picked up on a 40-hertz signal, you might wonder what the annoying sound was all about. But if you're a shark and you hear this "yummy hum," it might mean it's dinner time.
Scuba divers, leave your bling at home. Don't wear yellow when you swim in the ocean. We hear all sorts of advice designed to keep sharks at bay. But is it legit?
If you want to attract someone's attention, you wave. But sometimes, wildly flailing about can bring the wrong kind of interest. Do flapping fish beckon to hungry sharks?
Perhaps you prefer a nice filet mignon with a red wine reduction, but according to one source, dogs are a shark's favorite meal. Where do they find pups in the deep?
The biggest shark in the world is longer than a school bus. But taking people to sea to swim with these giants has become a big industry.
By Charles W. Bryant
You've heard the stat. You're more likely to be struck by lightning than be attacked by a shark. Still, wouldn't it be nice to know that your next aquatic destination doesn't fall on this list?
By Molly Edmonds
Not all sharks are the gigantic fish we see in popular fiction. The spined pygmy shark gets no larger than 9 inches long. Why don't we know much about them?
Even the most maniacally energetic people can appreciate crashing on the couch occasionally. Can sharks take the same break without dying?
The most dangerous shark is the one speeding toward you, right? But if you had to pick a shark to swim with, it wouldn't be one of these bad boys.
By Molly Edmonds & Patrick J. Kiger
Hammerheads have itty-bitty mouths, a tall dorsal fin and an impressively odd noggin. Why do these creatures of the deep look so strange?
You probably keep an eye out for that telltale fin swimming toward you when you hit the beach. Did you ever think that there might be sharks on the ocean floor, too?
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