American Bullfrog (IMAGE) Wildlife Conservation Society Caption This image shows the American bullfrog. Credit Larry Master, <a target="_Blank"href="http://Masterimages.org">Masterimages.org</a> Usage Restrictions With this story only 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.