When initial reports of a creature that combined the feet of an otter, the tail of a beaver and the bill of a duck arrived on ...

A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding could upend what’s known of their evolution.

To shed more light on echidna evolution, Hand and her colleagues reexamined a humerus (upper forelimb bone) from the extinct monotreme Kryoryctes cadburyi, which lived in what is now southern ...

Echidnapus identified from an 'Age of Monotremes' Date: May 28, 2024 Source: Taylor & Francis Group Summary: Australian researchers have found evidence of the oldest known platypus and a new ...

"Opalios splendens sits on a place in the evolutionary tree prior to the evolution of the common ancestor of the monotremes we have today. Its overall anatomy is probably quite like the platypus ...

Its overall anatomy is probably quite like the platypus, but with features of the jaw and snout a bit more like an echidna – you might call it an ‘echidnapus’,” Professor Helgen said.