Kings Canyon (IMAGE) University of California - Berkeley Caption UC Berkeley researchers Vance Vredenburg and Tate Tunstall collect data on infected frogs at Kings Canyon National Park. Credit Photo by Vance T. Vredenburg, UC Berkeley 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.