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

The platypus and echidna, often regarded as some of the most peculiar animals on Earth, may be hiding a far more complex ...

Of course, not just the platypus but every living organism is a mix of both conserved, primitive characters and evolutionary novelties—thus, a mouse is just as "weird" as a platypus from an ...

When it was discovered, the platypus was difficult to classify, bearing characteristics of mammals, reptiles and birds. The platypus type specimen is held in the Natural History Museum's collection To ...

The platypus is well adapted for a semi-aquatic ... Using the wealth of data available for living mammals, we compared characteristics of the Kryoryctes humerus microstructure to those in ...

The team found that internally, the fossil had characteristics of the semiaquatic platypus: a thicker bone wall and smaller central cavity. Together, these traits make bones heavier, which is ...