Monogamous birds switch partners for reasons similar to human breakups, scientists say Affairs or lengthy spells apart commonly spell divorce for human couples – but it seems similar factors play a ...

If dad was a playboy, there's a good chance that his sons and daughters will also be promiscuous, suggests a new study that identified a genetic link to such behavior. Moral objections aside, ...

Promiscuity mixes up the gene pool and dilutes genetic differences between populations, slowing down the evolution of new species, says new research. Promiscuity mixes up the gene pool and dilutes ...