Many mammals, including primates, engage in homosexual behavior. The argument over same-sex coupling has always been whether or not any of these animals prefer gay to straight sex. What’s true is that primates like gay sex. They have orgasms with same-sex partners. They ejaculate and make happy noises when they do. Dominant silverback gorillas have boyfriends. Some male langurs spend about 95 percent of their sex lives having homosexual encounters.
