Rich circumstantial evidence suggests that the extensive behavioural diversity recorded in wild great apes reflects a complexity of cultural variation unmatched by species other than our own1,2,3,4,5,6,7,8,9,10,11,12. However, the capacity for cultural transmission assumed by this interpretation has remained difficult to test rigorously in the field, where the scope for controlled experimentation is limited13,14,15,16. Here we show that experimentally introduced technologies will spread within different ape communities. Unobserved by group mates, we first trained a high-ranking female from each of two groups of captive chimpanzees to adopt one of two different tool-use techniques for obtaining food from the same ‘Pan-pipe’ apparatus, then re-introduced each female to her respective group. All but two of 32 chimpanzees mastered the new technique under the influence of their local expert, whereas none did so in a third population lacking an expert. Most chimpanzees adopted the method seeded in their group, and these traditions continued to diverge over time. A subset of chimpanzees that discovered the alternative method nevertheless went on to match the predominant approach of their companions, showing a conformity bias that is regarded as a hallmark of human culture11.
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Whiten, A. et al. Cultures in chimpanzees. Nature 399, 682–685 (1999)
Lefebvre, L. in The Evolution of Cognition (eds Heyes, C. & Huber, L.) 311–328 (MIT Press, Cambridge, 2000)
Rendell, L. & Whitehead, H. Cultures in whales and dolphins. Behav. Brain Sci. 24, 309–382 (2001)
Whiten, A. et al. Charting cultural variation in chimpanzees. Behaviour 138, 1489–1525 (2001)
de Waal, F. B. M. The Ape and the Sushi Master: Cultural Reflections of a Primatologist (Basic Books, New York, 2001)
van Schaik, C. P. et al. Orangutan cultures and the evolution of material culture. Science 299, 102–105 (2003)
Fragaszy, D. M. & Perry, S. (eds) The Biology of Traditions: Models and Evidence (Cambridge Univ. Press, Cambridge, 2003)
Whiten, A., Horner, V. & Marshall-Pescini, S. Cultural Panthropology. Evol. Anthropol. 12, 92–105 (2003)
McGrew, W. C. The Cultured Chimpanzee: Reflections on Cultural Primatology (Cambridge Univ. Press, Cambridge, 2004)
Lonsdorf, E. V., Pusey, A. E. & Eberly, L. Sex differences in learning in chimpanzees. Nature 428, 715–716 (2004)
Richerson, P. J. & Boyd, R. Not by Genes Alone: How Culture Transformed Human Evolution (Chicago Univ. Press, Chicago, 2005)
Whiten, A. The second inheritance system of chimpanzees and humans. Nature doi:10.1038/nature04023 (in the press)
Matsuzawa, T. in Chimpanzee Cultures (eds Wrangham, R. W., McGrew, W. C., de Waal, F. B. M. & Heltne, P.) 351–370 (Harvard Univ. Press, Cambridge, 1994)
Galef, B. G. Jr. in The Biology of Traditions: Models and Evidence (eds Fragaszy, D. & Perry, S.) 159–186 (Cambridge Univ. Press, Cambridge, 2003)
Laland, K. N. & Hoppitt, W. Do animals have culture? Evol. Anthropol. 12, 150–159 (2003)
Biro, D. et al. Cultural innovation and transmission of tool use in wild chimpanzees: evidence from field experiments. Anim. Cogn. 6, 213–223 (2004)
Whiten, A., Horner, V., Litchfield, C. A. & Marshall-Pescini, S. How do apes ape? Learn. Behav. 32, 36–52 (2004)
Tomasello, M. The Cultural Origins of Human Cognition (Harvard Univ. Press, Cambridge, 1999)
Menzel, E. W. Jr, Davenport, R. K. & Rogers, C. M. Proto-cultural aspects of chimpanzee's responsiveness to novel objects. Folia Primatol. (Basel) 17, 161–170 (1972)
Laland, K. N. & Plotkin, H. C. Social learning and social transmission of digging for buried food in Norway rats. Anim. Learn. Behav. 18, 246–251 (1990)
Tonooka, R., Tomonaga, M. & Matsuzawa, T. Acquisition and transmission of tool making and use for drinking juice in a group of captive chimpanzees. Jap. Psychol. Res. 39, 253–265 (1997)
Huffman, M. A. & Hirata, S. An experimental study of leaf swallowing in captive chimpanzees: insights into the origin of a self-medicative behaviour and the role of social learning. Primates 45, 113–118 (2004)
Asch, S. E. Studies of independence and conformity: I. A minority of one against a unanimous majority. Psychol. Monogr. 70, 1–70 (1956)
Sherif, M. & Murphy, G. The Psychology of Social Norms (Harper and Brother, New York, 1936)
Jacobs, R. C. & Campbell, D. T. The perpetuation of an arbitrary tradition through several generations of a laboratory microculture. J. Abnorm. Soc. Psychol. 62, 649–658 (1961)
Kendal, R. L., Coolen, I. & Laland, K. N. The role of conformity in foraging when personal and social information conflict. Behav. Ecol. 15, 269–277 (2004)
Henrich, J. & McElreath, R. The evolution of cultural evolution. Evol. Anthropol 12, 123–135 (2003)
Matsuzawa, T., et al. in Primate Origins of Human Cognition and Behaviour (ed. Matsuzawa, T.) 557–574 (Springer-Verlag, Tokyo, 2001)
Bruner, J. S. Nature and uses of immaturty. Am. Psychol. 27, 687–708 (1972)
Call, J. & Tomasello, M. in Reaching into Thought: The Minds of the Great Apes (eds Russon, A. E., Bard, K. A. & Parker, S. T.) 371–403 (Cambridge Univ. Press, Cambridge, 1996)
This project was conducted at the Yerkes National Primate Research Center's Field Station and supported by a project grant from the BBSRC to A.W., by the National Institutes of Health, the Living Links Center of Emory University and the University of St Andrews. A.W. was supported by a Leverhulme Fellowship. We are grateful to M. Dindo, K. Bonnie, J. Rybak and Yerkes Field Station Engineering for logistical support. We also thank Yerkes' animal care and veterinary staff for maintaining the health of the chimpanzees. We are grateful to A. Burnley for construction of the Pan-pipes and to G. Brown, E. Flynn, K. Laland and A. Mesoudi for comments on manuscripts. The Yerkes Center is fully accredited by the American Association for Accreditation for Laboratory Animal Care.
Reprints and permissions information is available at npg.nature.com/reprintsandpermissions. The authors declare no competing financial interests.
Procedures, coding and statistics details, additional to those in the main article. (DOC 27 kb)
Individual characteristics and rearing history. (DOC 72 kb)
Latency to success. For each individual, lists cumulative time from gaining access to the task, to first successful tool use. (DOC 33 kb)
Total frequencies of Poke and Lift. For each individual, lists total Poke and Lift acts in T1 and T2. (DOC 52 kb)
For each individual, lists the frequencies of Poke and Lift relevant to classification and statistics in Table 1 in the article. (DOC 33 kb)
Pan-pipe Lift technique by human, side-view. (MPG 2257 kb)
Pan-pipe Poke technique by human, side-view. (MPG 3322 kb)
Pan-pipe Lift technique by human, frontal (chimpanzee-eye) view. (MPG 1745 kb)
Pan-pipe Poke technique by human, frontal (chimpanzee-eye) view. (MPG 2286 kb)
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Whiten, A., Horner, V. & de Waal, F. Conformity to cultural norms of tool use in chimpanzees. Nature 437, 737–740 (2005). https://doi.org/10.1038/nature04047
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