Analysis of the fossil suggests that the only two egg-laying mammals, platypuses and land-based echidnas, both descended from ...

An analysis of the interior of a single bone suggests its owner was probably an aquatic or semi-aquatic animal. Since the ...

The ancestors of today’s crocodylians survived two mass extinction events. A new study has revealed a key factor behind their ...

A new dinosaur species has been discovered, and it’s causing a stir in the scientific community. Named Natovenator polydontus ...

Analysis of single bone may tell us if the platypus is an evolutionary anomaly — starting on land, then returning to water.

As the world's only surviving egg-laying mammals, Australasia's platypus and four echidna species are among the most ...

The extinct tiktaalik was a strange looking, semi-aquatic creature that answered several important evolutionary questions. It is known as a transition form, a term given to fossils mid-adaptation that ...

A study of a 100-million-year-old bone suggests the ancient relative of the echidna and the platypus was semiaquatic — and ...