<i>Ursus arctos</i> (IMAGE) University of Chicago Press Journals Caption North American grizzly bear (Ursus arctos) in Denali National Park, Alaska. Credit Photograph by Mark Chappell 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.