Bone Samples (IMAGE) University of Alaska Fairbanks Caption Tim Rabanus-Wallace collects bone samples from Quartz Creek in the Yukon. Credit Photo by Julien Soubrier 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.