Hand preferences in the skilled gathering tasks of mountain gorillas (Gorilla g. berengei).

@article{Byrne1991HandPI,
  title={Hand preferences in the skilled gathering tasks of mountain gorillas (Gorilla g. berengei).},
  author={Richard W. Byrne and James M Byrne},
  journal={Cortex; a journal devoted to the study of the nervous system and behavior},
  year={1991},
  volume={27 4},
  pages={521-46}
}
Manual dexterity of 44 wild gorillas of all ages and both sexes was investigated on six naturally acquired feeding tasks of varied logical structure, which included multi-stage and bimanually coordinated procedures. At least 400 min observation of feeding per animal, and analysis at the level of bouts rather than individual actions, can be expected to produce statistically robust results; 22 years background data allowed effects of genealogy and injury to be investigated. Five tasks elicited… CONTINUE READING
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