This apex predator roams the world's oceans and has developed an appetite for the livers of the largest and scariest fish in the sea.

In the scorching desert of Peru’s Pisco Basin, a major fossil discovery has been made. Paleontologists have unearthed the nearly complete fossil of a colossal shark that prowled the ancient seas ...

NOVA: Do sharks make sounds? Gruber: They make hydrodynamic sounds when swerving and accelerating, and they make crunching sounds with their teeth and jaws. But they don't have special organs for ...