Did Ancient Humans Have Bigger Brains Than You?

You carry a phone that knows every street on Earth. Thirty thousand years ago, a man in a French rock shelter carried his map in his head, and his skull held more brain than yours. So why did the man with nothing need the bigger brain? In this video we open the Cro-Magnon grave found by railway workers in 1868 and measure the skull of the famous Old Man. We follow the scientists who argue the human brain has shrunk since the Ice Age, and the scientists who say it hasn't. We look at what GPS may be doing to your sense of direction, and how London taxi drivers grew their brains by learning 25,000 streets. And we ask what you've stopped carrying, now that you don't have to. If you enjoyed this, like the video and tell us in the comments: could you find your way home tonight without your phone? Subscribe for more stories about how ancient humans really lived. #ancienthumans #humanevolution #prehistory