The gay animal kingdom

“Male big horn sheep live in what are often called ‘homosexual societies.’ They bond through genital licking and anal intercourse, which often ends in ejaculation. If a male sheep chooses to not have gay sex, it becomes a social outcast. Ironically, scientists call such straight-laced males ‘effeminate.’ Giraffes have all-male orgies. So do bottlenose dolphins, killer whales, gray whales, and West Indian manatees… As this list of activities suggests, having homosexual sex is the biological equivalent of apple pie: Everybody likes it.” Jonah Lehrer on Stanford University biology professor Joan Roughgarden’s controversial book, Evolution’s Rainbow