This book is about the immense forces of nature that formed and shaped the human species over millions of years. It is also about the new high-tech science that has allowed us to peer into the dark recesses of the past as never before and to reconstruct the trials, adaptive successes, and evolution of our ancestors. In Eco Homo, paleoanthropologist Noel T. Boaz presents a narrative of human evolution, a natural history of our origins, in the contexts of ecology and environmental change.