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.

Rather than throw its old head cases away, the gum leaf skeletonizer wears them like a hat to protect itself from predators. Darwin and fellow naturalist Alfred Russel Wallace predicted the existence ...

(via SciShow) Look, we all think platypuses are weird. Just one look at these beaver-tailed, egg-laying, duck-billed weirdos makes you wonder how we're even both mammals. But I have news for you - ...

Arabian sand boas live in deserts on the Arabian Peninsula, where they lie buried in the sand with only their derpy eyes peeking out as they wait for prey. Rather than throw its old head cases away, ...