Affiliation: | 1. California National Primate Research Center, University of California Davis, Davis, California;2. Department of Population Health and Reproduction, University of California Davis, Davis, California;3. Welfare and Cognition Group, Cognitive Neuroscience Laboratory, German Primate Center, G?ttingen, Germany;4. Centre for Research in Evolutionary, Social and Interdisciplinary Anthropology, University of Roehampton, London, United Kingdom |