PALEONTOLOGY

New evidence suggests that prehistoric turtle shells served a different purpose than we originally believed.

Researchers believe the discovery could be the key to identifying other ancient bird species.

Here's what a little stress and 45 million years can do to organic matter.

A new study finds that mammals were thriving 10 to 20 million years before dinosaur extinction.

Atopodentatus used its peg teeth and bizarre jaw to scrape plant matter off rocks on the sea floor.

When the mass extinction began, Lystrosaurus shortened its lifespan—and its mating cycle.

A new exhibit at the American Museum of Natural History argues that birds are just another kind of dinosaur.