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

Megalodon may have been up to 80 feet long, but the colossal extinct shark was also probably thinner than scientists ...

The earliest shark-like teeth we have come from an Early Devonian (410-million ... The end of the Permian Period (252 million years ago) saw yet another mass extinction event, wiping out around ...

Shark upper jaw showing multiple layers of serrated teeth. Shark teeth have long fascinated humans. From your average beach-comber stumbling across one embedded in the sand, to a ...