Brief Communications Arising
Nature 440, E6 (6 April 2006) | doi:10.1038/nature04759
Animal behaviour: Chimpanzee choice and prosociality (Reply)
Joan B. Silk1, Sarah F. Brosnan2,3, Jennifer Vonk4, Joseph Henrich2, Daniel J. Povinelli5, Amanda S. Richardson3, Susan P. Lambeth3, Jenny Mascaro2 and Steven J. Shapiro3
Beninger and Quinsey1 argue that we provide no evidence that chimpanzees show other-regarding preferences in the two-option test situation under conditions in which they would be expected to show such a preference. This criticism is misdirected, because our aim was not to determine whether chimpanzees would demonstrate prosocial preference under any circumstances. Instead, it was to determine whether chimpanzees show pro-social preferences in situations similar to those in which these occur routinely in humans.
- Department of Anthropology, University of California, Los Angeles, California 90095, USA
- Department of Anthropology, Emory University, Atlanta, Georgia 30322, USA
- Michale E. Keeling Center for Comparative Medicine and Research, University of Texas M. D. Anderson Cancer Center, Texas 78602, USA
- Department of Psychology, University of Southern Mississippi Gulf Coast, Long Beach, Mississippi 39560, USA
- Cognitive Evolution Group, University of Louisiana at Lafayette, New Iberia, Lousiana 70560, USA
Correspondence to: Joan B. Silk1 Email: jsilk@anthro.ucla.edu
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