Charles Shelton Jr. has collected thousands of shark teeth, jaws and other fossils over the past three decades. He now shares ...

A study, published in the Environmental Biology of Fishes on Dec. 4, has revealed that male sharks embrace their romantic partners by diving their teeth into a fin to begin fornication. Footage, ...

Shark sex is a bitey business, with males grasping females with their teeth during the act. The resulting wounds are helping ...

The giant armadillo, a native of the South American continent can have between 80 to 100 teeth. These peg-like teeth are said ...

Just in time for summer, the megalodon—the ancient, city bus-sized shark known as the “Megatooth”—has reared its ravenous snout. While the oceans are now safe from the Megatooth, which went extinct an ...