How do monkeys recognize snakes so fast? (IMAGE) Nagoya University Caption Monkeys exhibited an immediate response to images of snakes and salamanders with snake skin, but not to images of salamanders without scale. Credit Reiko Matsushita Usage Restrictions Credit must be given where image is used License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.