Frog Hops (VIDEO) Brown University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption To see the best bullfrog hops, scientists traveled to Calaveras County Jumping Frog Jubilee. Credit Michael Cohea/Brown University Usage Restrictions Available for use with 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.