Researchers often rely on fossil teeth for clues about what extinct animals ate. Giant ground sloths’ teeth have been tricky to analyze, though – until now.

Ancient teeth reveal that flexible feeders survived past climate shocks, while habitat specialists rapidly declined.

Understanding what the environment looked like millions of years ago is essential for piecing together how our earliest ...

Archaeologists found stone tools humans used to butcher animals in what's now Oregon. The tools were below ancient camel and bison tooth fragments that were over 18,000 years old. It's among the ...

It can be easy to take our teeth for granted until something goes wrong. Our teeth play a major role in our ability to eat and digest food, and can affect our overall health. Adults typically have 32 ...