Fossil Whale Barnacle (IMAGE) Smithsonian Tropical Research Institute Caption Fossil whale barnacles from the Pleistocene were retrieved from the Burica Peninsula of Panama for analyses. Credit Larry Taylor 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.