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  • Did your genes make you do it?

What a relief to see that some serious scientific work is being done on the perplexing question of why, why, why women would ever be unfaithful to their husbands.

For females, however, he says there have never been any “clear evolutionary benefits.” So what possibly could have motivated the 10 to 15 percent of wives who confided to NORC (the research center at the University of Chicago) that they “actually cheat on their partners”?

And if you’re thinking there might be some evolutionary benefit to sperm supply diversity and the potential quality upgrade advertised by, say, a hunky physique? Nah. Not in this report, anyway.