Capuchin monkeys are a species of New World monkeys that are native to Central and South America. In Costa Rica, capuchin monkeys are one of the most common primates and are found in a variety of habitats, including tropical forests, mangrove swamps, and coastal regions. These monkeys are well-known for their intelligence and their ability to use tools. They have been observed using rocks to crack open nuts and using sticks to probe for insects. They are also known for their ability to problem-solve and adapt to new situations.