Scientists suggest that bigger brains in bird ancestors led to more flexible skulls, playing a key role in their evolution.

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...

Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery.

Why was it the mammals who triumphed? An asteroid impact triggered the K-Pg mass extinction, wiping out the non-avian dinosaurs, ending the Age of Reptiles, and ushering in the Age of Mammals.

New research from the University of Chicago and University of Missouri shows how physical changes in the skull affected the ...

A newly studied Vegavis iaai skull from Antarctica confirms that modern bird lineages, like ducks and geese, were evolving alongside non-avian dinosaurs. This study supports Vegavis' placement in the ...

The Edelman Fossil Park and Museum opens March 29 unveiling a century of dinosaur discoveries and a fossil quarry to dig in.