One hundred thousand years ago, at least six different species of humans inhabited Earth. Yet today there is only one - homo sapiens. What happened to the others? And what may happen to us? Featuring 256 pages of full-color illustrations and easy-to-understand text, this adaptation of the mind-expanding book furthers the ongoing conversation as it introduces Harari's ideas to a wide new readership. The smash #1 New York Times and international bestseller recommended by President Barack Obama.