Sharks have ruled the Earth’s oceans for 400 million years and recent research on fossilized shark teeth has led to the ...

Remarkably, fossil shark teeth are also incredibly abundant. Sharks ruled the earth's oceans for 400 million years, and every individual grows and sheds thousands of teeth in their lifetime.

These jaws were lined with 276 teeth, and studies reconstructing the shark's bite force suggest that it may have ... although they are extremely rare in the UK and tend to be of poor quality. Almost ...

Shark attacks get a lot of attention for how rare they are. This is not to say ... feet in length and equipped with rows of razor-sharp teeth, they are apex predators capable of inflicting serious ...

Shark sex is a bitey business, with males grasping females with their teeth during the act. The resulting wounds are helping scientists to figure out when and where sharks are doing the deed.