Weizmann Institute researchers find that yeast born to preferred partners are fitter than those from one-night stands, ...

Mating with different partners could become a way to lower that pressure. Just like the red deer, you could be polygynous, meaning you could mate with multiple partners to increase the chances of ...

Add Yahoo as a preferred source to see more of our stories on Google. Dental remains dating back 300,000 years, which were discovered at a well-known Chinese archaeological site, have revealed ...

Humans are far closer to meerkats and beavers for levels of exclusive mating than we are to most of our primate cousins, according to a new University of Cambridge study that includes a table ranking ...

Add Yahoo as a preferred source to see more of our stories on Google. Photograph of a pair of túngara frogs (Engystomops pustulosus) in amplexus (male grasping onto female). It’s important to remember ...