3: Puzzle box

Do chimpanzees learn by imitating behaviours they see? The following experiment was designed to test this hypothesis using a box containing a food treat. The box has a door on the top, and a door on the front where the treat can be found. The door on top of the box is irrelevant: only the front door needs to be opened to get at the food. This film shows the experiment with a black box, and then shows the same experiment with a clear box.

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Dr. Victoria Horner and Prof. Andrew Whiten, Scottish Primate Research Group, School of Psychology, University of St Andrews, Scotland.