New York Times BestsellerFrom a renowned historian comes a groundbreaking narrative of humanitys creation and evolutiona #1 international bestsellerthat explores the ways in which biology and history have defined us and enhanced our understanding of what it means to be human.One hundred thousand years ago, at least six different species of humans inhabited Earth. Yet today there is only onehomo sapiens. What happened to the others? And what may happen to us?Most books about the history of human ...