New fossil evidence reveals insights into the evolution of monotremes, specifically platypuses and echidnas. A ...

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

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 in southeastern Australia could turn what we know about the evolution of echidnas and platypuses on its head.

The species, dubbed the "bone collector," belongs to an ancient lineage of moths older than the Hawaiian island of Oahu, ...

Imagine an animal so baffling that the world’s best scientists once thought it was a hoax. A beast with the bill of a duck, ...

Giant kangaroos stuck close to home and went extinct when climate change caused that home to disappear, according to a study ...