These apex predators eat sea lions, dolphins and even other sharks. Long, sharp teeth are excellent at gripping small or medium-sized fish and squid. The bull shark has needle-like teeth that are ...

Sharks were an important part of their diets, and after a successful hunt, the fishers would butcher bull sharks ... collection from Rio do Meio includes teeth from at least eight different ...

A “ serrated blade” found sticking from a rock in the United Kingdom has been identified as a “nearly perfect” prehistoric ...

A “serrated blade” found sticking from a rock on Isle of Wight in the UK has been identified as a shark tooth that could be 100 million years old, experts say. Wight Coast Fossils photo A ...