Six monotremes living in the same place at the same time, 100 million years ago at Lightning Ridge, NSW. Clockwise from lower left: Opalios splendens, a newly described species dubbed an ‘echidnapus’; ...

The findings were led by two mammalogists, Honorary Associate of the Australian Museum, Professor Tim Flannery; and Professor Kris Helgen, Chief Scientist and Director of the Australian Museum ...

Monotremes, found only in Australia and New Guinea, are unique mammals that lay eggs, combining features of reptiles and mammals. This group includes the platypus and four echidna species. They ...

Monotremes are mammals that lay eggs and do not carry their young in a womb. They include species like the platypus and echidnas. Egg-laying monotremes may have retained certain traits from their ...

Discovery of ‘echidnapus’ and two more species show the furry egg-layers predated marsupials Some time about 100m years ago in what is now an Australian opal field, a weird, furry, egg-laying, ...

Australian researchers have found evidence of the oldest known platypus and a new species, dubbed 'echidnapus', which has a platypus-like anatomy alongside features that more closely resemble an ...