The enhanced tool‐kit of two groups of wild bearded capuchin monkeys in the Caatinga: tool making, associative use, and secondary tools

@article{Mannu2009TheET,
  title={The enhanced tool‐kit of two groups of wild bearded capuchin monkeys in the Caatinga: tool making, associative use, and secondary tools},
  author={Massimo Mannu and Eduardo B. Ottoni},
  journal={American Journal of Primatology},
  year={2009},
  volume={71}
}
The use of stones to crack open encapsulated fruit is widespread among wild bearded capuchin monkeys (Cebus libidinosus) inhabiting savanna‐like environments. Some populations in Serra da Capivara National Park (Piauí, Brazil), though, exhibit a seemingly broader toolkit, using wooden sticks as probes, and employing stone tools for a variety of purposes. Over the course of 701.5 hr of visual contact of two wild capuchin groups we recorded 677 tool use episodes. Five hundred and seventeen of… 

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Cashew Nut Positioning during Stone Tool Use by Wild Bearded Capuchin Monkeys (Sapajus libidinosus)

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