Why do women use makeup? Why do men like to buy big cars? Why do people feel jealous? Evolutionary psychologist David M. Buss digs deep into the ancient past of human relationships to answer such questions, and produces intriguing results, disconcerting insights and valuable explanations. Using observations from the animal world and from many studies conducted in various societies, he provides a theoretical framework based on Darwin's theory of natural selection. Give Buss credit for elaborately fitting in almost every conceivable puzzle inherent in human mating relationships - even though this, admittedly, at times requires quite a stretch of his evolutionary theory. We recommend this "drop-dead shocker" (The Washington Post Book World) to anyone who has ever searched for, attracted, kept or separated from a mate - that is, anyone who is strong enough to face the unromantic truth.