Monkeys and related species of primates have shown an exceptional capacity for intelligence under scientific investigation. In addition to making tools, primates have shown the ability to understand language and read the emotions of both humans and their fellow animals. Monkeys have also been shown to be capable of weighing up future consequences of present decisions which was once thought to be a uniquely human trait.
Monkeys are extremely intelligent. I would say they are not as evolved has humans but they would be the closest to the human race. In the past, monkeys have been taught to do things like sign language, shop, and do skilled tricks for entertainment purposes. The fact that they are now making these stone tools is even more proof that they are extremely smart.
Yes, monkeys are more intelligent than people think. Humans are very self-absorbed and think that they are the most intelligent beings in the universe. It's ignorant and wreckless to think other living beings are not intelligent because they don't have a language discernable to the human mind. Monkeys have proven time and time again that they are intelligent and capable of learning and doing any things.
Yes, monkeys are more intelligent than people think, as are all animals. Monkeys are so similar to human beings that we should consider them equals in many ways. They can solve complex problems and easily navigate puzzles. They may even teach us a thing or two about how to live decent lives.