Our early human ancestor was capable of running, if slowly, a new study finds.

A puncture in the fossilized neck of a winged reptile that flew with the dinosaurs suggests the creature became a feast for a crocodile ancestor.

In the Cretaceous period, a shark or another kind of fish found sea lilies less than digestible. What you might expect followed.

A million years ago, a species known as Homo erectus most likely survived in an arid desert with no trees.

It’s not causing panic! in the fossil record, but a 430-million-year-old mollusk discovery in Britain is a source of excitement for some scientists.

The billionaire Kenneth C. Griffin, who bought the stegosaurus fossil for $44.6 million, is lending it to the American Museum of Natural History in New York for four years.

© James Estrin/The New York Times