These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

After years of analysis, the animal turned out to be an entirely new species — one that lived millions of years longer than ...

Picture this: you’re a scientist digging near the Amazon rainforest, and you pull a jawbone out of the ground that looks so ...

Roughly 425 million years ago, in the warm seas over what is now southern China, there lived a meter-long bony fish with jaws ...

Even with only jaws, Tanyka amnicola adds a new character to an ancient ecosystem that scientists are still trying to sketch ...

Scientists found a jaw so bizarre they assumed it was broken - they were very wrong.

A fossil skull barely 1 inch long has proved to be a newborn reptile from Brazil’s Late Triassic, a period more than 230 million years ago when early reptiles dominated land ecosystems. Its tiny jaw ...

The fossilized remains of a creature with a twisted jaw and sideways-facing teeth have been discovered in the Amazon jungle. Scientists say the plant eating reptiles now called Tanyka consisted of ...

In a dry riverbed in Brazil, in a dense forest near the Amazon, a team of paleontologists found a fossilized jawbone from an ancient animal. Over the course of their fieldwork, they found eight ...

"It's a really strange animal, and the weird twist in the jaw drove us crazy trying to figure it out." ...

For a shark that vanishes almost as quickly as it appears, the great white has left behind a surprisingly messy family ...