The Sex Contract: The Evolution of Human Behavior

Pp. 253; 1 double-page halftone map, 8 full page black-and-white plates. One-quarter blue cloth, lettered in gilt on the spine, over tan boards, color pictorial dust jacket, lg 8vo. In this volume, the author creates a vivid picture of why humans can down from the trees and began to walk on two legs. Making us see our fossil ancestors as real people, the author shows how an upright stance created radical changes in human sexuality. No ownership marks and no signs of use.