SOCIAL LEARNING AND CULTURE IN CHIMPANZEES

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This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. This project studies the process of social learning in outdoor housed groups of chimpanzees with a focus on several questions: What is the mechanism of social transmission: are apes capable of true imitation? We have been successful designing tests of imitation, using "artificial fruits" (a sort of puzzle box), and finding positive results that have been widely accepted. How does behavior spread in a group? Thus far, most studies have subjected chimpanzees to human behavior to see how it spreads, but we want to know about chimp-to-chimp transmission, which is the only kind of transmission that matters in the natural habitat. We are in the process of setting up imitation experiments on the chimpanzees. The unique feature of these studies, compared to all studies done before, is that the models from which the chimpanzees will learn will be conspecifics. So, instead of a human demonstrator, they will learn from another chimpanzee.