Swell sharks are shy shark species that aren't dangerous ... Even though swell sharks have sharp teeth, because they are so shy and fairly small, they don't have a lot of ways to defend themselves ...

A rendering of Clavusodens mcginnisi, or “McGinnis’ nail tooth,” an ancient shark that stalked the ocean floor 340 million years ago. Rendering courtesy of the National Park Service A shark ...

A small but fascinating collection of Megalodon teeth exhibit deep bite marks from other Megalodons, raising questions about ...

This shark gets its name from an unusual behavior it displays when threatened by a predator. When threatened, the swell shark swallows vast amounts of seawater, which causes its belly to swell and ...

A swell shark hatched at Shreveport Aquarium in Louisiana after an egg was found in an all-female tank. Screengrab from a video by the Shreveport Aquarium A small shark swimming around a Louisiana ...