Jo Varner and Denise Dearing, University of Utah (image) University of Utah Share Print E-Mail Caption University of Utah biologists Jo Varner and Denise Dearing conducted a study showing that mammals known as pikas, which are related to rabbits and hares, may be more adaptable to climate change than previously believed because they can survive on a diet of high-fiber, low-nutrition moss. Credit University of Utah Marketing and Communications. 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.