As a baby the monkeys are trained to be very smart and playful. Scientists have been studying how they act, and how smart they are.
monkeys later ages
A monkey is now fully matured and now it has reached it's full intelagence it can do almost anything that a human can. Monkey's usally live for about 10-15 years, maybe longer if kept captive, but has to be well fed and must have plenty of water.