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

A shark no larger than a human hand that stalked the ancient sea floor 340 million years ago has been dubbed the “chipmunk ...

A study explores how uranium isotopes in fossilized shark teeth could provide insights into historical ocean anoxia, with mixed results.

flexible tissue is their teeth. The group includes the more famous animals such as whale sharks and great whites, but also all rays, skates and the little-known chimaeras (also known as ratfish, ...

Along with teeth, the existing fossil record includes parts of giant shark skeletons from the same period, including a 36-foot-long (11-meter-long) section of a fossilized spinal column from ...

Yet back then, any one of these creatures could become prey to the ocean's fiercest apex predator: the megalodon, a giant shark with massive teeth and a body the size of a whale. In many ways ...

A new study provides many new insights into the biology of the prehistoric gigantic shark megalodon (megatooth shark), which ...

Ghost sharks, also known as chimaeras ... scale-free skin, and beak-like teeth. They are largely confined to the ocean floor up to 2,600 meters (8,530 feet) deep, feeding off crustaceans such ...

"Ghost sharks like this one are largely confined to ... such as shrimp and molluscs with their distinctive beak-like teeth.