This group includes the platypus and four echidna species. They exhibit distinct traits like a single cloaca, egg incubation, and milk secretion through skin patches. Conservation is vital due to ...

This meant that certain distinguishing features, such as mammary glands, were not obvious. The platypus was ultimately placed into a new order called Monotremata, alongside the four living species of ...

Officially named Opalios splendens, the new species has been nicknamed after its resemblance to the platypus and echidna - which are the only egg-laying mammals in the world today. The team behind ...

Aside from the duck-billed platypus, the echidna is the only mammal that lays eggs. Of the four echidna species three have long beaks, with the Attenborough echidna, and the western echidna ...