Field Experiments of Tool-Use

  • Tetsuro Matsuzawa
Part of the Primatology Monographs book series


This chapter introduces the “outdoor laboratory” at Bossou, which was established in 1988. Field experiments in the outdoor laboratory have provided the setting for the long-term, detailed longitudinal study of tool-use among Bossou chimpanzees. In this natural clearing at the top of Mont Gban, researchers have been providing raw materials for nut-cracking (nuts and stones) as a way to create opportunities for observing this complex tool-use behavior. The same approach in which fresh water was provided in tree hollows was adopted to study the use of leaves for drinking water. In the same location, at the same time, one may observe different kinds of tool-use, including the use of stones to crack open nuts, the use of leaves for drinking water, and the use of a stick to obtain driver ants. A field experimental approach has a clear advantage: it facilitates close observation of an individual’s tool-using ability and technique, it dramatically enhances the frequency of observations of tool-use, and it also provides us with the opportunity of comparing different tool-use behaviors simultaneously in the same locale, enabling the long-term longitudinal recording of the behavior. Consequently, we have accumulated valuable insights into learning processes underlying the acquisition of tool-use in young chimpanzees and the ways in which individuals handle the cognitive demands of each task.


Field Experiment Tool Material Camera Trap Wild Chimpanzee Young Chimpanzee 
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The present study was financially supported by the following grants: MEXT #16002001, #20002001, JSPS-HOPE, gCOE-A06-D07. Thanks are due to all my colleagues who have been conducting field experiments in the outdoor laboratory for decades: Drs. Noriko Inoue-Nakamura, Dora Biro, Claudia Sousa, Misato Hayashi, and Susana Carvalho. Special thanks are due to the late Takao Fushimi (1960–2009), who first succeeded in video-recording stone-tool use in the “Bureau,” our outdoor laboratory, in 1989. Thanks to his effort, our colleagues and students may continue field experiments at Bossou.


  1. Biro D, Inoue-Nakamura N, Tonooka R, Yamakoshi G, Sousa C, Matsuzawa T (2003) Cultural innovation and transmission of tool use in wild chimpanzees: evidence from field experiments. Anim Cogn 6:213–223PubMedCrossRefGoogle Scholar
  2. Fushimi T, Sakura O, Matsuzawa T, Ohno H, Sugiyama Y (1991) Nut-cracking behavior of wild chimpanzees (Pan troglodytes) in Bossou, Guinea, (West Africa). In: Ehara A, Kimura T, Takenaka O, Iwamoto M (eds) Primatology today. Elsevier, Amsterdam, pp 695–696Google Scholar
  3. Goodall J (1986) The chimpanzees of Gombe: patterns of behavior. Belknap Press of Harvard University Press, CambridgeGoogle Scholar
  4. Humle T (2003a) Chimpanzees and crop raiding in West Africa. In: Kormos R, Boesch C, Bakarr MI, Butynski TM (eds) West African Chimpanzees. Status Survey and Conservation Action Plan, IUCN/SSC Primate Specialist Group. IUCN, Gland and Cambridge, pp 147–155Google Scholar
  5. Humle T (2003b) Culture and variation in wild chimpanzee behaviour: a study of three communities in West Africa. PhD Thesis, University of Stirling, StirlingGoogle Scholar
  6. Humle T, Matsuzawa T (2001) Behavioural diversity among the wild chimpanzee populations of Bossou and neighbouring areas, Guinea and Côte d'Ivoire, West Africa. Folia Primatol 72:57–68PubMedCrossRefGoogle Scholar
  7. Matsuzawa T (1994) Field experiments on use of stone tools by chimpanzees in the wild. In: Wrangham RW, McGrew WC, de Waal FBM, Heltne PG (eds) Chimpanzee cultures. Harvard University Press, Cambridge, pp 351–370Google Scholar
  8. Matsuzawa T (1999) Communication and tool use in chimpanzees: cultural and social context. In: Hauser M, Konishi M (eds) The design of animal communication. MIT Press, Cambridge, pp 645–671Google Scholar
  9. Matsuzawa T, Tomonaga M, Tanaka M (eds) (2006) Cognitive development in chimpanzees. Springer, TokyoGoogle Scholar
  10. Sakura O, Matsuzawa T (1991) Flexibility of wild chimpanzee nut-cracking behavior using stone hammers and anvils: an experimental analysis. Ethology 87:237–248CrossRefGoogle Scholar
  11. Sugiyama Y (1993) Local variation of tools and tool use among wild chimpanzee populations. In: Berthelet A, Chavaillon J (eds) The use of tools by human and non-human primates. Clarendon Press, Oxford, pp 175–187CrossRefGoogle Scholar

Copyright information

© Springer 2011

Authors and Affiliations

  1. 1.Primate Research InstituteKyoto UniversityInuyamaJapan

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