Manatee Calf is Ready for its Close-up (IMAGE) US Geological Survey Caption A curious manatee calf approaches as the USGS Sirenia Project conducts fieldwork at Crystal River National Wildlife Refuge, Florida. Credit Robert Bonde, USGS. Public domain. 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.