Coupled with the observation in 1975 of cannibalistic infanticide by a high-ranking female in the community, the violence of the Gombe war first revealed to Goodall the "dark side" of chimpanzee behavior. The outbreak of the war came as a disturbing shock to Goodall, who had previously considered chimpanzees to be, although similar to human beings, "rather 'nicer'" in their behavior. Cowed by the superior strength and numbers of the Kalande, as well as a few violent skirmishes along their border, the Kasakela quickly gave up much of their new territory. These territorial gains were not permanent, however with the Kahama gone, the Kasakela's territory now butted up directly against the territory of another chimpanzee community, called the Kalande. The Kasakela then succeeded in taking over the Kahama's former territory. Of the females from Kahama, one was killed, two went missing, and three were beaten and kidnapped by the Kasakela males. Over the next four years, all six of the adult male members of the Kahama were killed by the Kasakela males. This was the first time that any of the chimpanzees had been seen to deliberately kill a fellow chimp. The first outbreak of violence occurred on January 7, 1974, when a party of six adult Kasakela males attacked and killed "Godi", a young Kahama male, who had been feeding in a tree.
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