House, Bailey orcid.org/0000-0002-4023-9724, Benozio, Avi and Tomasello, Michael (2023) Apes reciprocate food positively and negatively. Proceedings of the Royal Society B: Biological Sciences. 20222541. ISSN 1471-2954
Abstract
Reciprocal food exchange is widespread in human societies but not among great apes, who may view food mainly as a target for competition. Understanding the similarities and differences between great apes' and humans’ willingness to exchange food is important for our models regarding the origins of uniquely human forms of cooperation. Here, we demonstrate in-kind food exchanges in experimental settings with great apes for the first time. The initial sample consisted of 13 chimpanzees and 5 bonobos in the control phases, and the test phases included 10 chimpanzees and 2 bonobos, compared with a sample of 48 human children aged 4 years. First, we replicated prior findings showing no spontaneous food exchanges in great apes. Second, we discovered that when apes believe that conspecifics have ‘intentionally’ transferred food to them, positive reciprocal food exchanges (food-for-food) are not only …
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Psychology (York) |
Depositing User: | Pure (York) |
Date Deposited: | 26 Oct 2023 14:20 |
Last Modified: | 08 Nov 2024 01:27 |
Published Version: | https://doi.org/10.1098/rspb.2022.2541 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1098/rspb.2022.2541 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204634 |
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