Why is Sex Fun Author:Jared Diamond This is an abridged audio book on tape cassette. In "Why is Sex Fun?" Jared Diamond argues that, in our evolutionary history, our strange sex lives were as crucial to our rise to human status as our upright posture and large brain. Why are humans one of the few species to have sex in private? Why do humans have sex any day of the month or year- ... more »including when the female is pregnant, beyond her reproductive years, or between her fertile cycles? Why are human females one of the few mammals to go through the menopause? Why is the human penis so unnecessarily large? 'By the standards of the world's 4,300 other species of mammals,' says Diamond, 'we are the ones who are bizarre.' "Why is Sex Fun?" is a delightfully entertaining and enlightening account of the evolutionary forces that have shaped our sex lives.« less