Discover more about the egg-laying monotremes of Oceania and the ancient traits they still carry.

Echidnas, also called spiny anteaters, are some of the weirdest mammals in the world. They're among the only mammals that don't give birth to live babies, and they also carry their young in a pouch.

Monotremes are unique mammals that lay eggs, but their limited geographic ranges make them vulnerable. We explain why.

Monotreme habits There's an old joke which asks how do echidnas have sex? Very carefully. But Tasmanian researchers have discovered the spiky mammals aren't particularly careful at all. In fact, new ...