Yes, some species of monkeys are known to use tools to aid in their daily activities. For example, some capuchin monkeys in South America have been observed using sticks as tools to extract insects from tree bark. This ability to use tools is believed to be a sign of cognitive intelligence.
Yes, monkeys are known to use tools. They use tools to open food, such as nuts, and to access water. Some monkeys also use tools to groom themselves. Chimpanzees, for example, have been observed using sticks to get termites out of mounds.
