Capuchin Monkeys have the largest brains of all the New World monkeys. Due to this fact and also due to the versatility of these monkeys, Capuchin Monkeys are used to help paralyzed people. As monkeys have hands similar to human hands, they are able to perform some meaningful and useful actions, like serving food, opening and closing the door, turning on and off lights, retrieving objects needed, brushing hair and etc. Raised with love and attention, Capuchin Monkeys make wonderful companions for disabled people.