Extinct Species

A marsupial lion was a large extinct Australian mammal called Thylacoleo carnifex, not a true lion. It was a powerful predator that lived during the Pleistocene.

A sabertooth cat was a prehistoric mammal with long, curved upper canine teeth used for hunting. The best-known genus is Smilodon.

A woolly mammoth was a large extinct elephant relative adapted to cold Ice Age environments. It had long hair, curved tusks, and a thick layer of fat.