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, ...

The increase in complexity from simple replicating molecules to complex animal societies has involved approximately eight major evolutionary transitions 6,7. Almost all of these transitions have ...

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 ...

Book shines light on the reasons for some teenage girls' promiscuity. Sept. 22, 2011 — -- Kerry Cohen is a psychotherapist, and the author of the memoir "Loose Girl: A Memoir of Promiscuity." In ...

"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 ...