Fidelity in a relationship is rarely a matter of chance. Psychology suggests that loyalty is often connected to certain personality traits, emotional maturity, and personal values. Men who stay ...

Men now have yet another advantage over women. As if higher pay and peeing standing up weren't enough, now they can supposedly tell if someone will cheat just by looking at her. Is it also with ...

A number of species of animals are supposed to be monogamous, sometimes over the course of a lifetime. When the offspring of these various species are analyzed by examining their DNA, it turns out a ...