Serviceberries (IMAGE) Oregon State University Caption These serviceberries in Yellowstone National Park can be an important food source for grizzly bears and other animal species. Credit (Photo courtesy of Oregon State University) 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.