Love, language, guilt, envy, generosity, secrets, lies and sophisticated society are not unique to humans. We share those complex traits with our relatives - the monkeys.

Monkeys are clever, but we think that NATURE viewers are even more clever! Think you can come up with a funny caption for what's going on in this photo?

Baboons move in groups of about 80 individuals for defense. Often, larger males will go on offense as well -- chasing away predators or taking down a young gazelle.

Recent studies are finding that the language abilities of some monkeys are more sophisticated than previously believed.

The life of a monkey is full of ups and downs. When we watch their behavior we get the sense that their emotional lives may share something in common with our own.

Just how smart are monkeys? Their curiosity leads them to try new things, but it’s their culture that teaches them much of what they know.

Guenons are a diverse group of African monkeys, characterized by their long tails and large cheek pouches, which they use to carry food.

Did you watch the premiere of Clever Monkeys last night? Share your comments and favorite moments with other NATURE fans here.

Guereza monkeys have a specialized stomach with two different regions, similar to a cow’s stomach, which helps them digest their leafy diet.

View additional resources, online and in print, for NATURE's "Clever Monkeys."