Photograph (IMAGE) National University of Singapore Caption Associate Professor Daniel Friess (left), who led the three-year study on mangroves in Singapore to determine their benefits, with his two NUS Geography final-year students, Seah Li Yi (middle) and Aleena Kua (right), using a total station to survey the topography of a mangrove forest. Credit National University of Singapore Usage Restrictions None 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.