1.Monkeys are intelligent animals and have an IQ of 174.

2.It is easy to distinguish monkeys from apes.  Monkeys have tails, apes don’t.

3.Monkeys use vocalizations, facial expressions and body movements to communicate.

4.Monkeys show signs like head bobbling, yawning, pulling the lip and grinning when they are aggressive.

5.Monkeys become aggressive when to try to touch them.

6.Monkey are divided into New World Monkeys and Old World Monkeys. Monkeys that live in the New World come from South and Central America, and they have flat noses. The monkeys that are in the Old World are from Africa, and have thinner noses.

7.Monkeys are very social creatures. They live in families of hundreds of monkeys and a group of monkeys is called "Troop".

8.Monkeys are good swimmers but don't like to be in water.

9.Monkeys spend a lot of time grooming one another and they regularly pick out each others hair and skin because it helps remove bugs.

10.The Pygmy Marmoset which weighs 85 to 140 grams and measures 117-159 mm.