- Fidelity and Infidelity in Animals and People

Applying new research to sex in the animal world, esteemed scientists David P. Barash and Judith Eve Lipton dispel the notion that monogamy comes naturally. In fact, as The Myth of Monogamy reveals, biologists have discovered that for nearly every species, cheating is the rule -- for both sexes.

Reviewing findings from the same DNA fingerprinting science employed in the courtroom, Barash and Lipton take readers from chickadee nests to chimpanzee packs to explain why animals cheat. (Some prostitute themselves for food or protection, while others strive to couple with genetically superior or multiple mates.) The Myth of Monogamy then illuminates the implications of these dramatic new findings for humans, in our relationships, as parents, and more.

The Myth of Monogamy at last brings scientific insight into this emotionally charged aspect of the ultimate dating and marriage quandary.

But as we shall see, thanks to recent developments in evolutionary biology combined with the latest in technology, there is simply no question whether sexual desire for multiple partners is "natural". It is. Similarly, there is simply no question of monogamy being "natural". It isn't.

- Love and Intimacy with Multiple Partners

Unlike other books on this topic, Polyamory in the 21st Century weaves together research and facts to provide an informed and impartial analysis of polyamory as a lifestyle and as a movement, and to place it in a psychosocial as well as an historical context.

- Inside Multiple-Partner Relationships and Families

Marriage and monogamy are not what they used to be, and today many couples are opting to start families before getting married, or deciding not to get married at all. At the same time, gay couples in states that recognize same-sex marriage are getting married in droves. Some people prefer non-monogamy and have relationships that include swinging and polyamory. The landscape of American marriage and relationships is changing, and a variety of family systems are developing and becoming more common.