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http://newsroom.ucla.edu/page.asp?RelNum=6713
Higgamous hoggamous, woman's monogamous; hoggamous higgamous, men are polygamous. Or maybe not.
New research from UCLA and the University of New Mexico suggests that members of "the gentler sex" may have evolved to cheat on their mates during the most fertile part of their cycle — but only when those mates are less sexually attractive than other men.
"Women know they have attractions that come and go, but they probably don't realize that these urges are tied to their cycle — as well as our evolutionary past," said Martie G. Haselton, a UCLA researcher and author of two new studies on the subject. "They just know that suddenly one day they're attracted to their hunky neighbor or handsome co-worker."
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