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In this episode of the Podcast of Life , students from Martha's Vineyard Regional High School in Massachusetts and La Salle Academy in Rhode Island question shark researcher Greg Skomal about a charismatic predator...
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Lying in water only a foot deep, I watched the shark meander lazily through the...
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Animals, on land and in the ocean, live in a 3-D world, and they depend on...
CREDIT: © Mary Parrish/Smithsonian Institution 1. Respect Your Elders Sharks...

LATEST CATCH

Known to many simply as “shark girl,” Madison Stewart is an inspiring young woman with a passion to protect the creatures most people fear: sharks. S he’s been diving with sharks since the age of twelve. Here she is feeding a...
I want snack, so give me cookie! The cookie cutter shark ( Isistius...
Follow a journey with satellite tags placed on bull sharks and tarpon. Both...

DIVE DEEPER

There are more than 500 species of sharks swimming in the world’s ocean. Yet when most people think of these cartilaginous...
Manta rays are related to sharks, but have quite a different reputation among humans. They are often called the gentle giants of the sea because of their curious nature and graceful movements. This...
The shortfin mako shark ( Isurus oxyrinchus) is found offshore in tropical and warm temperate waters of all oceans, but has been known to travel to cooler waters at times. It is very strong and the...
“This shark was cruising low along the reef known as Alcyone. Her left eye was glancing up toward other hammerheads when I took this shot from below.” -- Nature's Best photographer, Alan Studley. See...
The blue-spotted stingray ( Taeniura lymma ) doesn’t like to be covered in sand like other species of stingray do. Instead, it prefers to show off its beautiful blue spots and, to stay up to the best...
Perhaps the most distinctive marine animal of all—the Great Hammerhead has a unique hammer-shaped head that gives it large visual range. Like other sharks, the hammerhead has many teeth. More so than...
As far back as I can remember, I have always been fascinated by sharks. My father introduced me to the ocean through books, documentaries and diving, and whenever we would see sharks on a dive in the...
This illustration shows one old idea of what the ancient shark Helicoprion might have looked like. There once was room for many ideas—some more plausible than others—because the only fossils of the...
Ever heard of a cookie-cutter shark ( Isistius brasiliensis )? They look like your average shark —sort of menacing and streamlined—but their name comes from how they feed. They eat smaller animals (...
For the last 150 years, paleontologists have debated the origins of the great white shark . Many believe that they descended from the 50-foot megalodon, also known as the megatooth shark (...
Imagine an adult person – now triple that size. That’s the size of the great white shark ( Carcharodon carcharias ). The biggest great white sharks can reach up to 20 feet long, but most are smaller...
This photo of a freshly cut dorsal fin from a scalloped hammerhead shark ( Sphyrna lewini ) , was taken in 2006 on a long-lined fishing boat in Cocos Island, 300 miles off the Pacific coast of Costa...
Not all sharks are a dull gray: the coral catshark ( Atelomycterus marmoratus ), for example, is vibrantly colored. These sharks, which reach more than 2 feet long, live among coral reefs, eating...
Great White Sharks ( Carcharodon carcharias ) are powerful swimmers, capable of going 50 kph / 35 mph. They can migrate long distances, from Hawaii to California, and from South Africa to Australia...
Gray reef sharks ( Carcharhinus amblyrhynchos ) are known for being active at night. They are considered Near Threatened by the IUCN Red List due to fishing and the loss of their coral reef habitat...
“Once in a while, manta rays appear in great numbers in a small bay in the Baa Atoll. The concentration of plankton must be very high in this particular bay, because up to 200 manta rays have been...
Tom Peschak, a photojournalist with the Save Our Seas Foundation, describes the devastating effects shark nets have on ocean life along the South African coastline. The nets were installed to protect...
A scientific illustration of the most powerful fish of its time, Carcharodon megalodon , which swam the ocean 30 million years ago. This shark may have reached a size of 20 meters/66 feet. Meet other...
Great white sharks are athletic hunters, leaping completely out of the water as they attack prey from below. They have six highly refined senses : smell, hearing, touch, taste, sight, and...
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