A 14,000-year-old mummified puppy discovered in Siberia contained the unexpected remains of a woolly rhinoceros in its ...

The marsupial lion, which vanished around 40,000 years ago, was a muscular ambush predator about the size of a modern lion.

If you’ve seen any of the “Ice Age” animated Disney movies, we have some bad news: You don’t know the real ice age. It was an ...

Far below the surface of Mexico’s Yucatán Peninsula, a flooded labyrinth of limestone tunnels has quietly guarded one of the ...