Ugandan Chimpanzees Engaged in Prolonged 'Civil War', Study Reveals
A recent study published in the journal Science has revealed that the Ngogo chimpanzee community, the largest known group of wild chimpanzees located in Uganda's Kibale National Park, has been embroiled in a bitter 'civil war' for the past eight years. Once a cohesive unit of nearly 200 individuals, the community has fractured into two distinct factions, known to researchers as Western and Central.
Escalation of Violence
Lead author Aaron Sandel, an anthropologist from the University of Texas and co-director of the Ngogo Chimpanzee Project, noted the stark transformation: "These were chimps that would hold hands. Now they're trying to kill each other." Since the emergence of two separate groups in 2018, there have been 24 recorded attacks, resulting in the deaths of at least seven adult males and 17 infants from the Central group. Researchers believe the actual death toll may be higher.
While chimpanzees are inherently territorial, this internal conflict is unprecedented in its intensity and duration. The initial polarisation was observed in June 2015, evolving from brief chases to a six-week avoidance period, and eventually to overt aggression.
Potential Causes and Implications
Researchers suggest several contributing factors to the conflict, including increasing group size, heightened competition for resources, and male-male competition for reproductive opportunities. Three likely catalysts were identified, though not explicitly detailed in the original summary.
The findings encourage a re-evaluation of the understanding of human conflict. The study posits that if chimpanzees, genetically close to humans, can engage in such lethal conflict without human constructs like religion or ethnicity, then relational dynamics may play a more significant causal role in human warfare than previously assumed. As James Brooks of the German Primate Center commented, this serves as a "reminder of the danger that group divisions can present to human societies."
