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

A small bone found 30 years ago at Dinosaur Cove could revolutionize our understanding of echidnas and platypuses' evolution.

Australia's burrowing echidna evolved from a water-dwelling ancestor in an "extremely rare" biological event, scientists said ...

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

A controversial idea suggests the ancestors of echidnas were more like the platypus. For the first time, fossil evidence ...

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

Australia’s burrowing echidna evolved from a water-dwelling ancestor in an “extremely rare” biological event, scientists said ...

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

Australia is known for its odd wildlife, but the echidna might just take the crown. With spines like a porcupine, a snout like an anteater, and the ability to lay eggs like a reptile, this bizarre ...

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

A small bone found 30 years ago at Dinosaur Cove in southeastern Australia could turn what we know about the evolution of ...

As the world’s only surviving egg-laying mammals, Australasia’s platypus and four echidna species are among the most extraordinary animals on Earth. They are also very different from each other.