Karen Black

An artist's impression of Nimbadon

Nimbadon lived 15 million years ago, in forests with flesh-eating kangaroos and tree-climbing crocodiles. Our first look inside their fossilised bones has revealed how these giants grew.

Koalaskulls2

An extinct species of koala that lived in the rainforest canopies of northern Australia about 20 million years ago has been named after a famous Australian – Dick Smith.