Why some capuchin monkeys (Cebus apella) use probing tools (and others do not).

@article{Westergaard1998WhySC,
  title={Why some capuchin monkeys (Cebus apella) use probing tools (and others do not).},
  author={Gregory Charles Westergaard and Andrew L. Lundquist and Michael Katherine Haynie and Heather E. Kuhn and Stephen J. Suomi},
  journal={Journal of comparative psychology},
  year={1998},
  volume={112 2},
  pages={207-11}
}
Tufted capuchins (Cebus apella) were provided with a task that facilitated the use and modification of sticks as probing tools. It was found that subjects aged 10 years or older at initial task exposure were less likely to use tools than were younger subjects. Furthermore, juveniles whose mothers died before the subjects were aged 3 years were less likely to use tools than were juveniles whose mothers survived through this period. The ability to use tools was not related to subject sex or to… CONTINUE READING

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