Sharks and rays have populated the world's oceans for around 450 million years, but more than a third of the species living ...

A "serrated blade" found sticking from a rock in the United Kingdom has been identified as a "nearly perfect" prehistoric shark tooth, experts say. It belonged to a Squalicorax falcatus shark ...

It belonged to a Squalicorax falcatus shark, which prowled the ocean 90 to 100 million years ago, according to Wight Coast Fossils on the Isle of Wight. That’s tens of millions of years older th ...

A group of whitetip reef sharks (Triaenodon obesus) resting under a table coral off the coast of Indonesia, one of the world's current ...