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? In this first volume of the adaptation of his ground-breaking book, renowned historian Yuval Harari tells the story of humankind's creation and evolution, exploring the ways in which biology and history have defined us and enhanced our understanding of what it means to be "human". From examining the role evolvi ...