“Sweet-Potato Washing” Revisited

  • Satoshi Hirata
  • Kunio Watanabe
  • Masao Kawai 


Japanese monkeys (Macaca fuscata) on Koshima Island wash sweet potatoes. This fact is quite well known, and is often discussed as an aspect of “culture” in nonhuman animals. However, the full picture is not always entirely understood. The finding of sweet-potato washing among Koshima monkeys followed theoretical considerations of culture in nonhuman animals presented by Imanishi, and from the beginning research on Japanese monkeys has developed from anthropological concerns about human evolution. In this chapter, we would like to illustrate the history of sweet-potato washing and other characteristic behaviors shown by Koshima monkeys (for reviews, see also Itani and Nishimura 1973; Nishida 1987).


Sweet Potato Nonhuman Primate Japanese Macaque Nonhuman Animal Japanese Monkey 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Boesch C (1991) Teaching among wild chimpanzees. Anim Behav 41:530–532CrossRefGoogle Scholar
  2. Boesch C (1996) The emergence of cultures among wild chimpanzees. In: Runciman WG, Maynard Smith J, Dunbar RIM (eds) Evolution of social behaviour patterns in primates and man. Oxford University Press, Oxford, pp 251–268Google Scholar
  3. Byrne RW, Russon AE (1998) Learning by imitation: a hierarchical approach. Behav Brain Sci 21:667–721PubMedGoogle Scholar
  4. de Waal FBM (1999) Cultural primatology comes of age. Nature 399:635–636PubMedCrossRefGoogle Scholar
  5. Galef BG (1990) Tradition in animals: field observation and laboratory analyses. In: Beckoff M, Jamieson D (eds) Interpretation and explanation in the study of animal behavior. Westview Press, Boulder, pp 74–95Google Scholar
  6. Galef BG (1992) The question of animal culture. Hum Nat 3:157–178CrossRefGoogle Scholar
  7. Goodall J (1973) Cultural elements in a chimpanzee community. In: Menzel EW (ed) Precultural primate behavior. Karger, Basel, pp 144–184Google Scholar
  8. Higuchi Y (1992) Cultural behavior of Japanese monkeys (in Japanese). Kawashima-shoten, TokyoGoogle Scholar
  9. Huffman MA (1884) Stone-play of Macaca fuscata in Arasiyama B troop: transmission of a non-adaptive behavior. J Hum Evol 13:725–735CrossRefGoogle Scholar
  10. Huffman MA (1996) Acquisition of innovative behaviors in nonhuman primates: a case study of stone handling, a socially transmitted behavior in Japanese macaques. In: Heyes CM, Galef BG (eds) Social learning in animals: the roots of culture. Academic Press, San Diego, CA, pp 267–289CrossRefGoogle Scholar
  11. Huffman MA, Quiatt D (1986) Stone handling by Japanese macaques (Macaca fuscata): implications of tool use of stone. Primates 27:427–437CrossRefGoogle Scholar
  12. Imanishi K (1952) The evolution of human nature (in Japanese). In: Imanishi K (ed) Ningen. Mainichi-shinbunsha, Tokyo, pp 36–94Google Scholar
  13. Itani J, Nishimura A (1973) The study of infrahuman culture in Japan: a review. In: Menzel EW (ed) Precultural primate behavior. Karger, Basel, pp 26–50Google Scholar
  14. Kawai M (1964) Ecology of Japanese monkeys (in Japanese). Kawade-shobo, TokyoGoogle Scholar
  15. Kawai M (1965) Newly acquired pre-cultural behavior of the natural troop of Japanese monkeys on Koshima Islet. Primates 6:1–30CrossRefGoogle Scholar
  16. Kawai M, Watanabe K, Mori A (1992) Pre-cultural behaviors observed in free-ranging Japanese monkeys on Koshima islet over the past 25 years. Primate Rep 32:143–153Google Scholar
  17. Kawamura S (1954) On a new type of feeding habit which developed in a group of wild Japanese monkeys (in Japanese). Seibutsu-shinka 2:11–13Google Scholar
  18. Kawamura S (1956) Prehuman culture (in Japanese). Shizen 11:28–34Google Scholar
  19. Kawamura S (1959) The process of sub-culture propagation among Japanese macaques. Primates 2:43–60CrossRefGoogle Scholar
  20. Kawamura S (1965) Sub-culture in Japanese monkeys. In: Kawamura S, Itani J (eds) Monkeys and apes: sociological studies (in Japanese). Chuokoron-sha, Tokyo, pp 237–289Google Scholar
  21. Matsuzawa T (1998) Chimpanzee behavior: a comparative cognitive perspective. In: Greenberg G, Haraway MM (eds) Comparative psychology: a handbook. Garland, New York, London, pp 360–375Google Scholar
  22. McGrew WC (1992) Chimpanzee material culture: implications for human evolution. Cambridge University Press, CambridgeGoogle Scholar
  23. Myowa-Yamakoshi M, Matsuzawa T (1999) Factors influencing imitation of manipulatory actions in chimpanzees (Pan troglodytes). J Comp Psychol 113:128–136PubMedCrossRefGoogle Scholar
  24. Nishida T (1987) Local traditions and cultural transmission. In: Smuts BB, Cheney DL, Seyfarth RM, Wrangham RW, Struhsaker TT (eds) Primate society. University of Chicago Press, Chicago, pp 462–474Google Scholar
  25. Sugiyama Y (1997) Social tradition and the use of tool-composites by wild chimpanzees. Evol Anthropol 6:23–27CrossRefGoogle Scholar
  26. Suzuki A (1965) An ecological study of wild Japanese monkeys in snowy areas: focused on their food habits. Primates 6:31–72CrossRefGoogle Scholar
  27. Tanaka I (1995) Matrilineal distribution of louse egg-handling techniques during grooming in free-ranging Japanese macaques. Am J Phys Anthropol 98:197–201PubMedCrossRefGoogle Scholar
  28. Tanaka I (1998) Social diffusion of modified louse egg handling techniques in free-ranging Japanese macaques. Anim Behav 56:1229–1236PubMedCrossRefGoogle Scholar
  29. Tomasello M (1990) Cultural transmission in the tool use and communicatory signaling of chimpanzees? In: Parker S T, Gibson K R (eds) “Language” and intelligence in monkeys and apes: comparative developmental perspectives. Cambridge University Press, New York, pp 274–311Google Scholar
  30. Tomasello M, Kruger AK, Ratner HH (1993) Cultural learning. Behav Brain Sci 16:495–552CrossRefGoogle Scholar
  31. Tsumori A, Kawai M, Motoyoshi R (1965). Delayed response of wild Japanese monkeys by the sand-digging test. I. Case of the Koshima troop. Primates 6:195–212CrossRefGoogle Scholar
  32. van Shaik CP, Deaner RO, Merrill MY (1999) The conditions for tool use in primates: implications for the evolution of material culture. J Hum Evol 36:719–741CrossRefGoogle Scholar
  33. Visalberghi E, Fragaszy DM (1990) Food-washing behavior in tufted capuchin monkeys, Cebus apella, and crab-eating macaques, Macaca fascicularis. Anim Behav 40:829–836CrossRefGoogle Scholar
  34. Vogel G (1999) Chimps in the wild show stirrings of culture. Science 284:2070–2073PubMedCrossRefGoogle Scholar
  35. Watanabe K (1989) Fish: a new addition to the diet of Koshima monkeys. Folia Primatol 52:124–131PubMedCrossRefGoogle Scholar
  36. Watanabe K (1994) Precultural behavior of Japanese macaques: longitudinal studies of the Koshima troops. In: Gardner RA, Gardner B, Chiarelli B, Plooij FX (eds) The ethological roots of culture. Kluwer, Dordrecht, pp 81–94Google Scholar
  37. Watanabe K, Mori A, Kawai M (1992) Characteristic features of the reproduction in Koshima monkeys, Macaca fuscata fuscata: a 34-year summary. Primates 33:1–32CrossRefGoogle Scholar
  38. Whiten A, Custance D, Gomez JC, Teixidor P, Bard KA (1996) Imitative learning of artificial fruit processing in children (Homo sapiens) and chimpanzees (Pan troglodytes). J Comp Psychol 110:3–14PubMedCrossRefGoogle Scholar
  39. Whiten A, Goodall J, McGrew WC, Nishida T, Reynolds V, Sugiyama Y, Tutin CEG, Wrangham RW, Boesch C (1999) Cultures in chimpanzees. Nature 399:682–685PubMedCrossRefGoogle Scholar
  40. Wrangham RW, McGrew WC, de Waal FBM, Heltne PG (1994) Chimpanzee cultures. Harvard University Press, CambridgeGoogle Scholar

Copyright information

© Springer 2008

Authors and Affiliations

  • Satoshi Hirata
    • 1
  • Kunio Watanabe
    • 1
  • Masao Kawai 
    • 2
  1. 1.Primate Research InstituteKyoto UniversityAichiJapan
  2. 2.Museum of Nature and Human ActivitiesHyogoJapan

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