Bite force, a measure of the strength of an animal's bite, helps researchers understand a species' role in the ecosystem.

Learn more about piranhas, why they have such a powerful bite, and why there are so many misconceptions around them.

The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." But new research suggests that this classic image might be wrong. The teeth on T. rex ...

Surprisingly, that honour goes to a tiny, almost eel-like creature that lived long before either of those beasts, known as ...