Geologist Samples Tooth Enamel (IMAGE) U.S. National Science Foundation Caption Geologist Mark Clementz samples tooth enamel from molars in the lower jaw of a Florida manatee. Credit University of Wyoming 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.