While evidence indicates that humans domesticated themselves, we’re not the only primates capable of self-domestication. Bonobos and baboons have shown they are just as capable of turning a kinder, gentler, and more cuddly culture into hardwired changes in their genomes.
Bonobos, aka the “sexy ape”, look a lot like chimpanzees and share the same forest habitat. It stands to reason that they should be similar in most other regards, but the two species are wildly different. On a physical level, bonobos have smaller skulls and canine teeth, but their greatest differences lie in the social realm. Bonobos are the laid-back lovers compared to the chimpanzee’s neurotic warmongers.
Bonobos spend more time playing and grooming than chimps. They have sex for just about any reason: so say hello, to solve conflicts, to celebrate finding food. A “bonobo handshake” is not how humans would want to start a business meeting. In the bonobo’s reduced physical stature and playful spirit, researchers have recently recognized the same changes that occurred when wolves became dogs, or when aurochs became cattle. But while dogs needed humans for domestication, bonobos have done it all on their own.