https://youtu.be/fxWY7rosS-0?si=aA8Nrpp4wlPEwgKu
https://en.m.wikipedia.org/wiki/Gombe_Chimpanzee_War
The Gombe Chimpanzee War, also known as the Four-Year War, was a violent conflict between two communities of chimpanzees in Gombe Stream National Park in the Kigoma region of Tanzania between 1974 and 1978. The two groups were once unified in the Kasakela community.
—-
Jane Goodall is known for her research on chimpanzees. The outbreak of the war shocked her, as she had previously considered chimpanzees to be, although similar to human beings, “rather ‘nicer’”. Coupled with her 1975 observation of cannibalistic infanticide by a high-ranking female in the community, the Gombe war revealed the “dark side” of chimpanzee behavior. In her 1990 memoir Through a Window: My Thirty Years with the Chimpanzees of Gombe, she wrote:
For several years I struggled to come to terms with this new knowledge. Often when I woke in the night, horrific pictures sprang unbidden to my mind—Satan , cupping his hand below Sniff’s chin to drink the blood that welled from a great wound on his face; old Rodolf, usually so benign, standing upright to hurl a four-pound rock at Godi’s prostrate body; Jomeo tearing a strip of skin from Dé’s thigh; Figan, charging and hitting, again and again, the stricken, quivering body of Goliath, one of his childhood heroes.