Warning: descriptions of bonobos' sexual behaviors may upset some readers.
In the rainforests of the Democratic Republic of Congo lives a remarkable primate called the bonobo. Previously, we believed humans closest relatives were chimpanzees, but not it was discovered that bonobos also share close to 98 percent of their DNA with humans. Chimpanzees and bonobos are both equally our first cousins.
Often referred to as the hippies of the animal world, peace, love, and sex is the bonobo way. They are very compassionate in nature, they never kill one another and rarely hunt. Sex is a form of conflict resolution, and bonobos are notorious for their sexual behaviors. When they meet another group of bonobos, instead of fighting over territory like other primates do, they have an orgy, share food and groom one another. Bonobos engage in sex frequently typically around a meal. Sex is heterosexual, homosexual, and in groups. It's used to greet each other, express affection, acceptance, cooperation, play, stress relief, and reconciliation (make-up sex). Bonobos are the only non-human primate to engage in certain sexual actions such as face-to-face sex, oral sex and tongue kissing.