Adelie Penguins Crossing Ice Floes (IMAGE) U.S. National Science Foundation Caption Adelie penguins cross ice floes near a lead in the sea ice at Cape Royds. Credit Peter Rejcek, National Science Foundation 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.