Decoding the Lethal Fissure: Ugandan Chimpanzees' Rare Social Collapse

Uganda's Ngogo chimpanzees have engaged in an eight-year civil war that demonstrates how social polarization escalates to coordinated coalition killing, challenging the assumption that organized intergroup aggression is uniquely human. This case reveals that systematic violence rooted in group conflict may be deeply embedded in primate evolution. The research underscores how social network fragmentation can trigger collective violence patterns observed across species, offering critical insights into the biological foundations of human conflict.