The author of Manwatching and The Naked Ape presents a wide-ranging account of human sexual behaviour, from not just a biological viewpoint but also an evolutionary, emotional and social perspective. Taking as his starting point a period in primeval history when the balance of the sexes may have been more equal, he goes on to explore how the biological differences between male and female have been modified, exaggerated and suppressed by cultural influences. The account culminates with a look at the dilemma facing modern women as they consider their biological inheritance, and examines the causes and possible outcomes of the long-running battle between the sexes.