<I>Cebus capuchinus</I> (IMAGE) Smithsonian Tropical Research Institute Caption Is this monkey a wimp? A new study by Margaret Crofoot and Ian Gilby at the Smithsonian research station on Barro Colorado Island in Panama shows that the answer may depend on the size of the group it belongs to. Credit Marcos Guerra Usage Restrictions Credit required License Licensed 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.