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Sharks are one of nature’s most beautiful—and misunderstood—creatures. When most people think of sharks, they think of unexpecting swimmers being attacked and eaten by a nightmarish creature. But what they don’t know is that...
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Long before great white sharks appeared, much larger ancestors roamed the ocean...
In this episode of the Podcast of Life , students from Martha's Vineyard...
by Caty Fairclough Sharks have been feared hunters ever since people first...

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The distinctive form of a winghead shark ( Eusphyra blochii ) is revealed by an X-ray image. The Winghead Shark, one of about ten species of hammerhead sharks, has its eyes set at the tips of its wide, T-shaped head, giving it...
Sharks have young in three different ways. After internal fertilization,...
The shortfin mako shark ( Isurus oxyrinchus) is found offshore in tropical...

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Sharks are much older than dinosaurs. Their ancestry dates back more than 400 million years, and they are one of evolution’s...

The Ocean Blog

Dr. Mahmood Shivji explains how shark DNA is used as evidence to prosecute shark fin poachers . What is shark finning? Find out here .
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...
Scientists know the Greenland shark ( Somniosus microcephalus ) moves slowly in the Arctic's cold water. They also know that parasites attack the shark's eyes. But much about this animal remains a...
An X-ray image of a Monterey skate ( Raja montereyensis ) reveals a spine that extends like a tail out from the pelvic fin. The skeletons of skates, rays, chimaeras, and sharks are made of cartilage...
A lemon shark pup swims through a shallow mangrove forest off the coast of Bimini Island in the Bahamas in this image captured by National Geographic photojournalist Brian Skerry. For nearly 30 years...
Three bar jacks and a female tiger shark, nearly 4-meters long, swim off the coast of the Bahamas in this image captured by National Geographic photojournalist Brian Skerry. For nearly 30 years,...
How does this skate ( Bathyraja richardsoni ) measure up? Researchers use underwater equipment to estimate its size. The marks on the meter-long scale bars are 10 cm apart. The yellow ribbons show...
The pre-industrial American landscape was once rightly described as a place where “the deer and the antelope roam.” On land, we take it for granted that the plant-eating deer and antelope far...
Two fossilized teeth from a megalodon ( Carcharodon megalodon ) dating back more than 20 million years. The ancestry of great white sharks has long been debated, but by looking closer at shark teeth...
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