Happy World Chimpanzee Day. On July 14, as the world celebrates one of humans’ closest living relatives, here’s a roundup of recent Mongabay stories about chimpanzees and their world: Chimps at war in Kibale National Park Chimpanzees, like humans, sometimes fight wars with each other.  Mongabay contributor Keith Anthony Fabro reported on a chimpanzee (Pan troglodytes) “civil war” in Uganda’s Kibale National Park where a chimpanzee community split into rival factions and attacked former allies.  Before the split, the Ngogo community was unusually large, with 150 to 200 individuals making it one of the largest chimp groups ever recorded in the wild. The community then divided into two factions, which researchers call the Central and Western groups — named after the areas of forest they occupied. Between 2018 and 2024, the Western group carried out 24 attacks on the Central group, killing at least seven adult males and 17 infants. The conflict is still unfolding and may have lasting consequences for the population. The findings of a study show how shifting social ties can fracture animal societies and trigger collective violence. What do chimpanzees and Ringo Starr have in common? Drumming and singing at the same time is impressive, whether you’re Karen Carpenter, Ringo Starr or a chimpanzee. Mongabay’s Liz Kimbrough reported on Ayumu, a 26-year-old male chimpanzee at Kyoto University’s Institute for the Evolutionary Origins of Human Behavior (EHUB). Ayumu has been spontaneously tearing floorboards from a walkway, fashioning them into instruments and performing extended drumming displays while also vocalizing.…This article was originally published on Mongabay

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