These are difficult questions to crack open. It's markedly different from the way chimps treat strangers.Īs a species, who are we? Are humans innately hostile and violent toward people who belong to communities other than our own? Or are we inherently friendly and cooperative? A new study looks at how a community of bonobos behave when they encounter a different group of bonobos. Bonobos (pictured) and chimpanzees are our closest relatives.