If you’re a fan of muscley men, listen up: those guns might come at the cost of a man’s fertility. In this study (published in the journal Animal Behavior, because we ain’t nothin’ but mammals), the researchers report that physical strength in men, while seen as attractive by women, is also associated with “lower ejaculate quality.” Boxer shorts, anyone?

Perceived physical strength in men is attractive to women but may come at a cost to ejaculate quality

“Studies of sexual selection ac