At more than 160 million years old, a recently discovered amphibian fossil has set a new record for the earliest known ...

Researchers hope the "exquisitely preserved" fossil will cast new light on an enduring mystery in paleontology.

A search for dinosaur fossils unintentionally shifted into a discovery of the oldest tadpole ever discovered when a team ...

NEW YORK — Scientists have discovered the oldest-known fossil of a giant tadpole that wriggled around over 160 million years ...

The brains of today's birds facilitate a level of cognitive prowess and behavioral complexity rivaled only by mammals. But ...

Terror birds were apex predators some 12 million years ago in South America. A newly published discovery could be the largest yet.

Navaornis is likened to a sort of Rosetta Stone for decyphering the evolution of bird brains.