Monogamy and polygamy may both be normal for humans

Are you a Don Draper or a Mr. Darcy? It turns out, people may naturally fall into two distinct groups: those who want a long-term love, and those seeking more casual encounters, a new study suggests.

Both men and women sorted into these two groups, though slightly more men tended to seek short-term encounters, the researchers found.

The findings could partly explain why there's such a wide variation in sexual behaviors seen across cultures, said Rafael Wlodarski, an experimental psychologist at the University of Oxford in England

Rainbow of love

Human beings have much more varied mating strategies than other animals. Some people mate for life, while others seem to have an endless parade of interchangeable partners. In between is a whole range of unique love arrangements, from men with many wives to women who marry two brothers. Humans are also, by and large, less promiscuous than their primate cousins. Only about 30 percent of primates and 3 percent of all mammals are monogamous, Wlodarski told Live Science. Read more...

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