"Squirrel monkey fur is short and close, colored olive at the shoulders and yellowish orange on its back and extremities. Their throat and the ears are white and their mouths are black. The upper part of their head is hairy...Squirrel monkeys grow to 25 to 35 cm, plus a 35 to 42 cm tail. Male squirrel monkeys weigh 750 to 1100 g. Females weigh 500 to 750 g."
"Squirrel monkeys live in the tropical forests of Central and South America in the canopy layer." I found this monkey in the Manuel Antonio National Park in Costa Rica
This squirrel monkey was quick and I followed it as it walked across the wires before jumping back into a tree and disappearing. Great leapers!