Unlike virtually every other primate, spider monkeys have no thumbs, which could snag on the branches. Instead, their four long fingers form a perfect hook to help them swing on branches.

It can support a spider monkey’s full body weight and allows them to hang onto branches, freeing their hands so they can climb, forage, and eat. This animal’s diet consists mostly of fruits ...

This is especially true for spider monkeys, since they have prehensile ... “Our animal care team will be on hand to help him and Tika with reintroductions to the rest of the troop,” the ...

It was a spider monkey, and she wasn’t doing well. For some reason, she had tried to cross the river at an especially wide and perilous section. Her little black hands were paddling, her lips ...

Colobus monkeys and spider monkeys barely have thumbs at all. Their tiny, stubby thumbs aren't functional, which means they have only four useful fingers. Colobus monkeys use their hands as hooks for ...