Costa Rica Research Team (IMAGE) Michigan State University Caption EARTH University research collaborator Ramon Leon, left, works with MSU doctoral student Delanie Kellon and MSU researcher Robert Richardson in Costa Rica. Credit Photo by Joe Arvai, MSU Usage Restrictions Use only in conjunction with this release. 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.