It's hard to imagine the study of human origins without the Leakey family. Three generations of Leakeys have scratched in the baked, unfriendly soil of East Africa to unearth fossil evidence of the earliest humans and their ancient ancestors. In the process they have practically defined the field of paleoanthropology, while eliciting admiration as well as controversies and criticism. In this engrossing biography, prolific writer and educator Mary...