A dapper older gentleman spurns his mate of a certain age to take a fresh-faced young lover. You've seen that movie before, right?
Well, this choice of youth may turn out to be more than a Hollywood trope. Researchers say decisions like that one may have been the evolutionary source of menopause.
While conventional wisdom says that men prefer younger women because they're fertile, a recent report in PLOS Computational Biology suggests that it's precisely this preference for younger mates that caused older women to become infertile in the first place.
