Wacky Weekend: Primates

These awesome animals are letting it all hang out. Get the facts on mountain gorillas, orangutans, spider monkeys, and other primates in the photo gallery below.

Crested black macaques, like a lot of primates, are supersocial. They live in groups in Indonesia that can have as many as a hundred individuals.
Photograph by Anup Shah, Minden Pictures
Baboons live in groups called troops. Troop members groom each other to show friendship and strengthen social bonds.
Baboons live in groups called troops. Troop members groom each other to show friendship and strengthen social bonds.
Photograph by Doug Steakley, Getty Images