D. Ross Robertson (IMAGE) Smithsonian Tropical Research Institute Caption This is D. Ross Robertson, staff scientist at the Smithsonian Tropical Research Institute in Panama. Credit STRI Usage Restrictions Credit STRI 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.