4. American Cave Lion Modern-day North America and Mexico were home to the American cave lion. About 12,000 years ago, the species went extinct, about the same time the Eurasian cave lion did. The ...

The world’s oldest mine has been discovered in southern Africa by bombarding ancient materials with neutrons inside the reactor core. Dated at around 48,000 years old, the mine shows the ...

This story appears in the January 2015 issue of National Geographic magazine. This is where the cave lions are. And the woolly rhinos, mammoths, and bison, a menagerie of ancient creatures ...