Cold air rushes from a small hole in the ground, whispering secrets of a world far below the surface. Imagine stepping across ...

A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...

The creation of three "dire wolf" pups has raised hopes that it may be possible to resurrect extinct animals. But some scientists have grave concerns. Swathes of scientific data deletions are ...

We may have gotten the evolutionary origins of the echidna backward, as new research suggests its ancestors probably lived in ...