Burrow Excavation (IMAGE) University of Washington Caption Christian Sidor of the University of Washington digs for tetrapod fossils in Allan Hills, part of the southern Victoria Land area of Antarctica, during field work in January 2006. Credit Cara Fritz/Oregon State University Usage Restrictions News use only. 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.