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

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 ...

Many of us think of our own species as a monogamous one. We select a mate, and we stick with them, or so we tend to believe. But are modern humans really as monogamous as we assume, and are we any ...