We know sex is complicated in primates and that human sexuality is the most complex sexuality of any animal on the planet. But for some reason we keep asking very simple evolutionary questions about ...

It’s an age-old debate in the gay community: does size matter? Well, according to a new study in the scientific journal The Aging Male, it does. At least, in the eyes of the beholder. The relatively ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. “All complicated machines and appliances are very probably the ...