bones

The largest shark that ever lived is called Otodus megalodon. Its teeth were as big as a human hand. The oldest fossil evidence dates from 20 million years ago, and it became extinct just 3.5 million years ago.

Chewed up dinosaur bones are a pretty common find in Colorado's Mygatt-Moore Quarry. According to a recent story, about 29% of 2,368 dinosaur bones researchers found had bite marks from the serrated teeth of therapods, carnivorous dinosaurs that roamed the region in the late Jurassic period 150 million years ago.

On today's Moment of Science, we're going to talk about dragons. This might seem like an inappropriate topic for a science program, but there are stories and myths about dragons from everywhere in the world.

Steve Bodi spends his vacations hunting for fossils out West. You just might lose your head over his latest find.