National Book Critics Circle Award--2017 Nonfiction Finalist " Nothing less than a tour de force--a heady amalgam of science, history, a little bit of anthropology and plenty of nuanced, captivating storytelling."-- The New York Times Book Review, Editor's Choice A National Geographic Best Book of 2017 In our unique genomes, every one of us carries the story of our species--births, deaths, disease, war, famine, migration, and a lot of sex. But those...