Found in the 30 million-year-old rock of Egypt’s Fayum Basin, the prehistoric skull represents a new genus of hyaenodont. “It was upside down when one of my colleagues noticed some large teeth ...

An 18-meter-long, 50-ton behemoth once patrolled even the darkest corners of the world's oceans millions of years ago. The ...

EvolutionIncarnate, CC0, via Wikimedia Commons 15 million years before movies like Jaws and Open Water gave swimmers the heebie-jeebies, a prehistoric shark species called Otodus megalodon reached ...

Everyone's favorite prehistoric shark may have been much sleeker and much larger than previously thought. A new study suggests that the megalodon wasn't as stocky as the great white shark ...