About this episode
Twenty thousand years ago, the world was locked in ice. The glaciers advanced from the poles and mountain ranges, swallowing huge portions of the planet's surface and making the rest colder and drier, a more difficult place to live. Yet people nevertheless thrived, spreading out across the continents and creating some of the most incredible art in human history. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .