Coral Reef at Palmyra Atoll (IMAGE) Smithsonian Caption A coral reef at the Palmyra Atoll National Wildlife Refuge, in the tropical Pacific Ocean. Credit U.S. Fish and Wildlife Service Usage Restrictions No restrictions. License Public Domain 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.