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 ...

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 ...

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 ...

The Attenborough's Long-beaked Echidna, considered a living fossil, appeared on Earth in the era of the dinosaurs. Aside from the Australian platypus, it is the only mammal that lays eggs.

The platypus was ultimately placed into a new order called Monotremata, alongside the four living species of echidna. Monotremes are, notably, egg-laying mammals that produce milk for their young. The ...

The cloacal animals - the platypus and the echidna - are often overshadowed. However, fossil finds now show that these animals probably played a much more prominent role 100 million years ago and ...