Cougar Prowling (image) S.J. & Jessie E. Quinney College of Natural Resources, Utah State University Share Print E-Mail Caption Utah State University researchers and their colleagues have found that cougars have more influence than wolves on the movement of elk across the winter range of northern Yellowstone National Park. Credit Yellowstone Cougar Project/National Park Service Usage Restrictions None Share Print E-Mail 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.