100,000 years ago, at least six human species inhabited the earth. Today there is just one: Homo sapiens. How did our species succeed in the battle for dominance? Why did our foraging ancestors create cities? How did we come to believe in gods, nations and human rights; to trust money and laws? In these illustrated adaptations of his bestselling book, the explores the ways in which biology and history have defined us and enhanced our understanding of what it means to be "human".