Peruvian Glass Frog (IMAGE) University of California - Berkeley Caption The delicate Hyalinobatrachium bergeri is the most abundant species of glass frog in the cloud forests of Manu National Park, Peru, where they can be found from ~800 to 2200 meters elevation. Credit Alessandro Catenazzi, Southern Illinois University-Carbondale 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.