Using the same DNA fingerprinting technology used in the courtroom, biologists have now been able to trace parenthood in animals for the first time with certainty. The results have been astonishing: Even among those species previously thought to be monogamous, cheating on your mate is common--for both sexes.

In The Myth of Monogamy, David Barash and Judith Eve Lipton describe how this new research shows that there is simply no question whether sexual desire for multiple partners is "natural." It is. Similarly, there is no question of monogamy being "natural." It isn’t.

Armed with this evidence, scientists have also been able to explain such important questions as why animals (including humans) cheat; why the myth of monogamy was created in the first place; how men and women were sucked into the monogamy hoax; who stands to gain the most by perpetuating the myth of monogamy; and how big of a role procreation plays in the desire to have several sex partners. Finally, The Myth of Monogamy explores the implications of these dramatic new findings for humans, in terms of relationships, parenting, aggression, and more.

A provocative new study of an emotionally charged issue, The Myth of Monogamy illuminates a part of our natural make-up that is as fascinating as it is frustrating.

Judith Eve Lipton, M.D. is a psychiatrist who has received many honors, including Fellowship in the American Psychiatric Association. She has practiced psychiatry since 1980, currently specializing in women's issues. Drs. Barash and Lipton have been married since 1977. Together, they have produced two wonderful children, and four books.