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Title: Agresiones letales en chimpancés. Infanticidio y canibalismo
Author: Guillén Ramírez, Fina
Tutor: Saladié Ballesté, Palmira
Keywords: chimpanzees
lethal aggressions
Issue Date: Jun-2022
Publisher: Universitat Oberta de Catalunya (UOC)
Abstract: Studies on chimpanzee behaviour began in the 1930s and 1940s (Llorente, 2009), but it was not until the 1960s that primatology began to be discussed as a real science, thanks to research by Goodall in Gombe and Nishida in Mahale (Mitani, 2009). Research in Uganda and Tanzania has provided information on the evolution of chimpanzee diet, social relationships and behaviour in the wild. Chimpanzees have been found to engage in aggressive behaviour between members of other communities. These interactions are generally directed at an adult or adolescent male, an adult female and/or females with dependent offspring or juvenile individuals. However, when the individual they are interacting with is an in-utero female, the interaction is generally not aggressive. These attacks are often fatal, with infanticide often resulting in infanticide in the case of cannibalism. Different hypotheses have been proposed to explain chimpanzee cannibalism. On the one hand, reference has been made to the hypothesis that by killing the offspring, the female goes into oestrus and the aggressors have a better chance to reproduce. Other proposals relate to the power imbalance hypothesis, where aggression is considered as a means of protection and to expand territory, and therefore have better access to food resources, and on the other hand to the coalition hypothesis, where aggression is considered to eliminate future rivals. Some researchers have proposed a link between the violence observed in chimpanzees and primitive warfare between populations. These hypotheses are not without criticism, however, it has been suggested that the cannibalism observed at Gran Dolina, in the Sierra de Atapuerca, is part of a set of intergroup aggressions between different groups of early humans.
Language: Spanish
Appears in Collections:Bachelor thesis, research projects, etc.

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