The bonobo is one of the largest mammals to be found by science. The creature was discovered in 1929 in a Belgian colonial museum, far from its lush African habitat. A German anatomist, Ernst Schwarz, was scrutinizing a skull that had been ascribed to a juvenile chimpanzee because of its small size, when he realized that it belonged to an adult. Soon the animal was assigned the status of an entirely distinct species within the same genus as the chimpanzee, Pan . The bonobo is officially classified as Pan paniscus .
Some scientists say bonobos are closer to humans than common chimps.
Two females engaging in sexual play. A lot of the behaviors we see, like homosexuality, may be leftovers from prehistoric time that some people now consider unacceptable in our particular society. Although others in society may disagree that homosexuality is in any way unacceptable. The whole issue is just a matter of personal opinion and preference. A female Bonobo using a ball as a sex toy.