Question: how intellegent are monkeys?

Paul Higgins answered on 18 Nov 2012:

I’d say monkeys are less intelligent than Apes. Apes like chimps and gorillas have been taught sign language, so they must be pretty smart, but I’m not sure if monkeys have ever learned sign language. Monkeys still have very complicated social interactions with each other, so they are probably a lot smarter than a dog or cat, but their brains are a lot smaller than Apes.