• Question: What is the most interesting puzzle you have seen the monkeys/apes complete?

    Asked by bakerboy2002 to Lewis on 8 Mar 2014. This question was also asked by .
    • Photo: Lewis Dean

      Lewis Dean answered on 8 Mar 2014:

      We set them a complicated puzzle where they can different types of food depending on how much they do. If they just push a door open, they get some carrot (which they don’t like that much), but if they do more they get apple or grape (which they like more).

      It was interesting that only a few chimpanzees and capuchin monkeys learned it.

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