The largest Nepal grey langur ever recorded ... both of which belong to the Old World group, and the spider monkey, a New World member. Take a look at how they stack up: ...

The noise sends a clear message to other monkeys: This territory is already occupied by a troop. These vocal primates are the biggest of all the New World monkeys. Unlike Old World monkeys ...

New World monkeys have a prehensile tail ... Baboons: Lifespan 35-40 years Baboons are the largest monkey species and one ...