The red colobus is a species of Old World monkey that can be found in West African forests. Colobus is derived from the Greek word "Colobe" which means "cripple". This is due to the fact that they are lacking thumbs. However this is an advantage for this arboreal species as it allows them to swing from branch to branch with more ease. Colobus monkeys are known to utilize a tree branch like a trampoline and jump up and down on a branch in order to get liftoff for a leap of as much as 50 feet!