Sampling Permafrost Bison Bone (IMAGE) University of Adelaide Caption Professor Alan Cooper is shown sampling permafrost bison bone, Yukon Territory, Canada. Credit Photo by Julien Soubrier Usage Restrictions To be used only with articles about this research 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.