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’; ...

Infant marsupials and monotremes use a connection between their ear and jaw bones shortly after birth to enable them to drink their mothers' milk, new findings reveal. Infant marsupials and monotremes ...

Infant marsupials and monotremes use a connection between their ear and jawbones shortly after birth to enable them to drink their mothers' milk, new findings in eLife reveal. This discovery by ...

A nearly gapless genome sequence of the echidna, an egg-laying mammal with multiple sex chromosomes, helps researchers to track genomic reorganization events that gave rise to a highly unusual sex ...

If you’ve always thought echidnas and platypuses were distant cousins who went their separate ways on land and water, think again. A single fossilized arm bone, found in a remote corner of ...

Monotremes display a unique mix of mammalian and reptilian features and form the most distantly related, and least understood, group of living mammals. Their genetic blueprint provides fundamental ...

Linda Shearwin receives funding from the Australian Research Council. Frank Grützner does not work for, consult, own shares in or receive funding from any company or organization that would benefit ...

The males of the extraordinary semi-aquatic mammal – one of the only kind to lay eggs – have venomous spurs on the heels of their hind feet. The poison is used to ward off adversaries. But scientists ...