Sexual promiscuity among deer mice rewrites DNA and boosts the immune…

The California mouse and the deer mouse are very similar, except California mice find one partner and mate with them for life, while deer mice take on as many mates as possible. That lifestyle difference has a major biological impact. » 9/03/12 12:00pm 9/03/12 12:00pm

Promiscuity promotes a healthier society

While debates rage among humans over the value of promiscuity, the argument is settled among honey bees. New evidence from several scientific studies suggests that queen bees who mate with multiple males are able to build healthier hives that are more productive, well-fed, and disease-resistant than hives where the… » 3/13/12 7:40am 3/13/12 7:40am

Promiscuity evolved to fight back against inbreeding

From a strictly evolutionary perspective, there's no reason why female beetles should be promiscuous. Unlike males, taking on multiple partners won't allow females to spread their genes more widely, and too much sex can actual shorten the female beetle lifespan. » 9/26/11 11:12am 9/26/11 11:12am

Adultery runs rampant among the zebra finches

Like humans, zebra finches form monogamous partnerships in order to rear children. And, very much like us, these birds are also known to indulge in "extramarital" sex, even when these affairs serve no obvious evolutionary purpose. » 6/14/11 11:45am 6/14/11 11:45am