Horse bones (IMAGE) University of Colorado at Boulder Caption Study coauthor Isaac Hart of the university of Utah compares a healthy talus bone from the Lehi horse with one heavily impacted by arthritis. Credit William Taylor 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.