Maybe you've seen a "mermaid's purse" while walking on the beach. Not actually an accessory for the mythical creature, these small casings are the eggs of sharks and their relatives. For around 455 ...

1. Introducing sharks, skates, rays, and chimaeras -- What are sharks and how are they classified -- How many kinds of sharks are there -- How did sharks get their name -- Where do shards live -- When ...

Revered and feared, sharks hold an unparalleled place in the human imagination. They are the ocean’s apex predator. The stuff of nightmares. The lurking specter of myths. Scientists tell us that ...

Catching one of the Pacific Northwest’s top predators takes time, a little luck and big chunks of meat. Oregon State University shark researcher Jess Schulte grabs a fishing hook about as big as her ...

Bull sharks (Carcharhinus Leucas) are one of the ocean’s most fearsome creatures. Although some animals may prey on bull sharks, such as crocodiles, killer whales, and the occasional great white shark ...

Some sharks do need to keep swimming to stay alive, but not all. Like other fish, sharks extract oxygen by passing water over their gills, says Ellen Husain. Many of the larger, faster species use ram ...

Add Yahoo as a preferred source to see more of our stories on Google. A great hammerhead shark's two eyes can be 3 feet apart on opposite sides of its skull. Ken Kiefer 2/Image Source via Getty Images ...

While many kids enjoy staring at the sharks swimming gracefully through the tanks at the Loveland Living Planet Aquarium in ...