Perito Moreno Glacier, Argentina (IMAGE) Washington University in St. Louis Caption The highly crevassed surface of the Perito Moreno Glacier. Credit Jeremy Pomerantz, Washington University in St. Louis Usage Restrictions For editorial purposes License Original 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.