This is only the second chimpanzee civil war ever documented. The first was Gombe, 1974. Fifty years apart. Genetic data suggests chimp communities split roughly once every 500 years.
Gombe was 9 males breaking off from a group of about 60. The splinter faction was hunted down over four years. Every male killed. Goodall had nightmares about it for decades.
Ngogo is operating at a completely different scale. 200 chimps. The largest studied community on Earth. They functioned as one unit for 20 years, shared territory, ran border patrols together, fought neighboring groups side by side. Then in 2015 something snapped. Five key males died, possibly from disease. Those males were the social bridges between two clusters. Once the connective tissue disappeared, the cliques hardened.
By 2017 they occupied separate territories and patrolled borders against each other. By 2018 the killing started. 28 dead so far, 19 of them infants. The Western faction, despite being smaller, initiated every attack. They ripped infants from mothers. The lead researcher calls himself a war correspondent.
The part that rewrites the textbook: no ethnic divisions, no religion, no ideology, no resource scarcity. Just a social network that lost its bridge nodes. The researchers think the same mechanic explains human civil wars better than cultural theories do. Polarization isn't about beliefs. It's about who stopped talking to whom.
JUST IN: Massive chimpanzee group in Uganda has reportedly split into rival factions & descended into a deadly “civil war”