Manatee (VIDEO) Smithsonian Tropical Research Institute This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption An endangered Antillean manatee, grazes in the murky waters of the San San Pond Sak wetlands on Panama's Caribbean coast. Researchers at the Smithsonian Tropical Research Institute used sonar data to estimate manatee populations. Credit Ana Endara, 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.