we all know that monkeys are smart

we all know that monkeys are smart animals, but sometimes their intelligence is surprising and entertaining. a psychologist once wantde to see just how smart a monkey was. he hung a banana high up in a monkey's cage and placed several large boxes and a stick nearby. he wanted to see if the monkey could use the boxes and the stick to get the banana. the monkey looked at the banana, the boxes, and the stick. then it took the psychologist's hand and led him to where the banana was hanging. it jumped up onto his shoulders and