If the monkey triggers it, the machine dispenses a tasty banana slice. It took a few days, but a dominant monkey soon approached the strange device to investigate. He climbed on the box to give it a slap, but eventually touched the screen, earning a banana for his efforts. According to the team, CapuchinAI offers an unprecedented opportunity to study primate cognition outside of a laboratory setting. (Novice monkeys will receive the entrance exam, “touch screen for banana.”)