Collecting Bear Hair (IMAGE) Montana State University Caption Travis Wyman of the National Park Service collects hair caught in the bark of a tree in Yellowstone National Park. A variety of federal and state agencies collect the grizzly bear hair that's stored at MSU. Credit Photo courtesy of Mark Haroldson. Usage Restrictions Photo must include photo credit. 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.