Summary: Mating with Cavemen Episode 12 - by Sarah Chow (Click here to directly access the MP3) According to a new study, the human genome actually contains up to 4% of the Neanderthal genome. This suggests modern humans and Neanderthals got busy 30 thousand years ago, which eventually lead to the extinct of the caveman population. Click here to learn more about Neanderthal extinction.
