Psychologist Wolfgang Köhler placed a piece of fruit and a long stick outside chimpanzee Sultan's cage. Inside the cage he placed a short stick. Prior to gaining insight into the solution of the problem Sultan used

Question

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Sultan initially used the short stick to try reaching the fruit, demonstrating trial-and-error behavior before gaining insight into using the short stick to retrieve the long stick and then using the long stick to get the fruit.

Psychologist Wolfgang Köhler Placed a Piece of Fruit and a Long