Bonobos for years have had the reputation of being the cool hippies of the simian world, with a “make love, not war” ethos, in contrast to their belligerent cousins, the chimpanzees. But is this reputation valid? A new study suggests it is not.
Researchers tabulated aggressive behavior such as charging, hitting, biting, slapping, kicking and trampling among 22 groups of bonobos and chimpanzees – the two species that are the
