Mounting evidence from genome studies indicates that, contrary to received wisdom, our species has undergone profound ...

WASHINGTON — Scientists in Australia have identified the oldest known fossil footprints of a reptilelike animal, dated to around 350 million years ago. The discovery suggests that after the first anim ...

A new Archaeopteryx fossil with soft tissue reveals flight features and offers fresh support for Darwin’s theory of evolution ...

Clues are emerging about the ghostly clan that settled eastern Asia and left a genetic legacy in people today.

A new study suggests two fossil trackways found in Australia were made by an early amniote, a group that today includes ...

Fossilized tracks from an early reptile are now the oldest known reptilian tracks, meaning the tetrapod ancestor most likely ...

By physically engineering their environments, megafauna such as dinosaurs curbed fruit seed sizes—a role that now may be ...

Typically, mammals give birth to live young. However, three unusual species defy this norm. Scientists are intrigued by the ...

New fossil evidence suggests echidnas evolved from a water-dwelling ancestor, not a land-based one. The bone structure ...

Giant prehistoric kangaroos perished when "climate upheaval" turned lush Australian rainforest into desert, scientists said on April 24 after studying ancient fossils with new techniques.

Peeking inside the fossil with microCT scans ... It's very strange news in terms of echidna evolution. It suggests their ancestor was a swimming, burrowing monotreme that eventually hung up the towel ...

The platypus and echidna, often regarded as some of the most peculiar animals on Earth, may be hiding a far more complex ...