Cooperative Problem Solving by Orangutans (Pongo pygmaeus)

@article{Chalmeau2004CooperativePS,
  title={Cooperative Problem Solving by Orangutans (Pongo pygmaeus)},
  author={R. Chalmeau and Karine Lardeux and Pierre Brandibas and A. Gallo},
  journal={International Journal of Primatology},
  year={2004},
  volume={18},
  pages={23-32}
}
A captive pair of subadult male orangutans (Pongo pygmaeus) performed a cooperative task without training. Both partners had to pull a handle simultaneously in order for each to get food. They also learned the importance of the partner at the apparatus to make a successful response. The requirements of the cooperative task appear to have been understood by the orangutans, much like chimpanzees (Pan troglodytes) in the same situation. In contrast, capuchins (Cebus apella) succeeded in the… Expand

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