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

When you think about sharks, the first thing that might come to mind are huge jaws filled with rows of deadly-looking teeth. But shark teeth come in many ... exploited different ecosystems and eaten ...

But was this apex predator simply a beefed-up great white shark, and is it still lurking in the ... rare in the UK and tend to be of poor quality. Almost all fossil remains of megalodon are teeth.

using the lower teeth like a blade to tear off circular chunks of flesh. Smaller prey is eaten whole. This mysterious shark is not often seen by cameras: The first photograph of a live Greenland ...

At first glance, the world’s second largest fish might seem menacing: Its gaping mouth has six rows of teeth ... all measuring between 4.5 and 6.5 feet: as large as a full-grown whitetip reef shark.

Various kinds of shark teeth can be found in these places ... But I know people that all they do is dig, and what they come home with can fill that bucket." But Shelton emphasized that those ...