In the late ‘60s and early ‘70s, when “sleeping with someone was almost like shaking hands,” womanizers had a certain allure, according to Norris Church Mailer in her charming new memoir A Ticket to ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. LAST FEB. 11, A FORMER ARKANSAS STATE employee named Paula Jones called ...

NEW YORK (CBS 2)-- A new study suggests there may be a biological reason for infidelity. A group of New York researchers say it's all in the genes -- and not your blue ones. When it comes to monogamy, ...

Promiscuity mixes up the gene pool and dilutes genetic differences between populations, slowing down the evolution of new species, says new research by an international team led by the University of ...

Females are coy and males are ardent. This was Darwin’s somewhat Victorian portrayal of the sexes in his book The Descent of Man and Selection in Relation to Sex. The myth that males are naturally ...

Via Andrew Sullivan, I see that the gay journalist Marc Ambinder has come up with a provocative neologism in his latest Week column. Excerpt: Where will we end up? Will promiscuity define young gays ...

Sex at Dawn is a popular book about sex and human nature, written by PT blogger Chris Ryan and Cacilda Jethá. Some other PT bloggers seem to be huge fans of the book (for instance, see this recent ...

"Slutty" behavior is good for the species. That's the conclusion of a new wave of research on the evolutionary drives behind sexuality and parenting. Women everywhere have been selflessly engaging in ...

While debates rage among humans over the value of promiscuity, the argument is settled among honey bees. New evidence from several scientific studies suggests that queen bees who mate with multiple ...