Sea ice (IMAGE) University of Washington Caption A thin layer of Antarctic sea ice. The ice first forms in round disks, known as "pancake ice." Credit Lettie Roach/University of Washington Usage Restrictions With credit 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.