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Within-species variation eclipses between-species differences in Pan consolation

Brooker, Jake S.; Webb, Christine E.; Kordon, Stephanie; de Waal, Frans B.M.; Clay, Zanna

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Authors

Profile image of Jake Brooker

Jake Brooker jake.s.brooker@durham.ac.uk
Post Doctoral Research Associate

Christine E. Webb

Frans B.M. de Waal



Abstract

Empathy and its subcomponents are well documented throughout the animal kingdom, indicating the deep evolutionary origins of this socioemotional capacity. A key behavioural marker of empathy is consolation, or unsolicited bystander affiliation directed towards distressed others. Consolation has been observed in our closest living relatives, bonobos (Pan paniscus) and chimpanzees (P. troglodytes). However, systematic comparisons are absent, despite potential for interspecific differences. Bonobos are often considered less aggressive, more emotionally sensitive, and more socially tolerant than chimpanzees—key characteristics purported to drive consolation. Furthermore, social and individual factors also appear to drive intraspecific variation in empathy. To address within- and between-species variability in Pan consolation, we systematically tested the consolatory tendencies of N = 40 bonobos and N = 50 chimpanzees. Bonobos and chimpanzees exhibited similar consolation tendencies; however, within-species analyses revealed further similarities and variation. Bonobo consolation was most often directed towards and received by younger individuals, while chimpanzee consolation was most often directed towards close social partners. In addition, males and females of both species showed decreased consolation with age, with some evidence for chimpanzee males consoling more than young females. Our findings support the notion that within-species variation in Pan socio-emotional abilities is greater than between-species differences, highlighting the presence of striking behavioural diversity across our two closest cousins.

Citation

Brooker, J. S., Webb, C. E., Kordon, S., de Waal, F. B., & Clay, Z. (2025). Within-species variation eclipses between-species differences in Pan consolation. Evolution and Human Behavior, 46(3), Article 106682. https://doi.org/10.1016/j.evolhumbehav.2025.106682

Journal Article Type Article
Acceptance Date Mar 19, 2025
Online Publication Date Apr 24, 2025
Publication Date May 1, 2025
Deposit Date May 13, 2025
Publicly Available Date May 13, 2025
Journal Evolution and Human Behavior
Print ISSN 1090-5138
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 46
Issue 3
Article Number 106682
DOI https://doi.org/10.1016/j.evolhumbehav.2025.106682
Public URL https://durham-repository.worktribe.com/output/3947395

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