squirrel monkey

Squirrel monkeys live in the tropical forests of Central and South America. Their range extends from Costa Rica through central Brazil and Bolivia.

Squirrel monkeys grow to 25 to 35 cm, plus a 35 to 42 cm tail. They weigh 750 to 1100g. Remarkably, the brain mass to body mass ratio for squirrel monkeys is 1:17, which gives them the largest brain, proportionately, of all the primates. Humans have a 1:35 ratio.

Squirrel Monkeys are often described as one of the most peaceful primates. These little creatures are an attractive sight of Costa Rica and other tourist places. Their orange fur and funny faces are a great amusement for those who happen to see them. However, their future is uncertain due to a rapid habitat loss.