![]() ![]() Loango's "Annual intercommunity killing rate was among the highest across all sites." West Africa's chimpanzees have been seen as less violent towards members of their own species than their East African counterparts, but Southern told IFLScience her team recently showed The park's gorillas are less studied, and less photographed. RELATED ARTICLE: Human Speech Evolved From Lip-Smacking in Chimps, Study SuggestsĬheck out more news and information on Chimpanzees and Gorillas in Science Times.Adult male chimpanzee in Loango National Park in Gabon. Perhaps, studying further about these lethal attacks could give insights into the early human evolution. The observations had opened new doors for exploration and discovery on human's closest living relatives. Pika said that their team is still in the early stage of understanding the competition on interactions between chips and gorillas in Loango. The team thinks that the likely reason for the encounter could be competition for food sources rather than direct predation as observed on the dead infant gorillas, although the second one might have been eaten. Fruit trees in Gabon have been producing lesser fruit in recent years due to climate change. The authors suspect that the feud between the two species is no coincidence, IFL Science reported. Although during other times of the year, both chimpanzees and gorillas were friendly with each other. ![]() They pointed out that these encounters happened during the seasons when the diet of the two great ape species overlap heavily. The team investigated what caused the lethal attacks from the chimpanzees. The team noted that the aggressors of both encounters were male chimpanzees.ĪLSO READ: Like Humans, Chimps Also Prefer Less Friends Later in Life Why Did Chimpanzees Attack the Gorillas? The team found that the dead baby gorilla in the second encounter was almost entirely consumed by one adult chimpanzee female. Unfortunately, both first and second encounters resulted in one dead baby gorilla each and seven injured chimpanzees in the first encounter. The second encounter happened at the start of a suspected territorial boundary patrol. In the paper, they wrote that the first event happened after a territorial patrol in which males made a deep incursion into the neighboring territory of a group of chimpanzees. ![]() ![]() The second encounter lasted for 72 minutes, involving 27 chimpanzees that attacked a group of seven gorillas. Sky News reported that the first encounter lasted for 52 minutes and the party of 27 chimpanzees formed a group to attack a group of gorillas. They realized that the chimpanzees had encountered a group of gorillas in a fight. They noticed screams of chimpanzees and heard chest beats, which is a display characteristic of gorillas. Our colleagues from Congo even witnessed playful interactions between the two great ape species."īut in 2019, the team recalled that the first attack happened. "Interactions between chimpanzees and gorillas have so far been considered as relatively relaxed," says Professor Simone Pika said in a news release. "We have regularly observed both species interacting peacefully in foraging trees. Researchers from Osnabruck University and the Max Planck Institute for Evolutionary Anthropology in Leipzig have been studying the behavior of around 45 chimpanzees in Loango National Park with a special group focus on the relationships within and between chimpanzee troops. ![]()
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