In a 2011 Psychology Today post called "What Monkeys Can Teach Us About Human Behavior," Michael Michalko described an experiment involving five monkeys, a ladder, and a banana.

Eventually the monkeys realize what's happening and start to attack any other monkey that tries to reach the banana, even when the hoses are turned off.

The grainy, black-and-white footage, filmed in 1919 and 1920, documents what has become a classic psychology experiment, described again and again in articles and books.

HE MAKES A STUDY OF MONKEY TRICKS; Harvard Exponent of Animal Psychology to Spend Summer Among Zoo Simians. TO LIVE IN THEIR QUARTERS Special Cage to be Fitted Up for the Study of Their Imitative ...

5. Harlow’s Monkey Experiments In the 1950s, Harry Harlow of the University of Wisconsin tested infant dependency using rhesus monkeys in his experiments rather than human babies.

Thinking Like a Monkey What do our primate cousins know and when do they know it? Researcher Laurie Santos is trying to read their minds ...

In experiments, monkeys make some ‘financial’ decisions which are remarkably similar to those made by humans.

Harry Harlow’s most famous experiments involved isolating an infant rhesus monkey until it was socially and emotionally devastated. Less well-known is the experiment in which he revived them ...

New research shows that when it comes to most psychology experiments, all rodents might be created equal.

Little Albert was the baby at the heart of one of psychology’s most controversial experiments – now considered “medical misogyny.” For decades nobody knew the identity of the infant, who ...

In a 2011 Psychology Today post called "What Monkeys Can Teach Us About Human Behavior," Michael Michalko described an experiment involving five monkeys, a ladder, and a banana.