Anthropologist and Primatologist, Richard Wrangham, explains how humans selectively bred ourselves to become less aggressive and how our capacity for violence informed the evolution of morality and our sense of right and wrong.
Humans are unique among primates because they do not have an alpha male who personally beats up every other male. A coalition of beta males in every generation takes down any male who tries to become the alpha male, resulting in the suppression of reactive aggression in humans.
Explore how the violent and war-like behavior of chimps is similar to that of humans, and what that tells us about our evolutionary psychology.
Sexual intimidation practices have evolved in primates, including male targeting of specific females in groups where multiple mating is the norm. In human history, power dynamics also played a role in sexual aggression towards females.
Bonobo chimpanzees playfully interact with each other by using vulnerable parts of their anatomy, such as the genitals, which can also have negative impacts on neighboring males; this highlights the line of trust and vulnerability that comes with play.