Sumatran Cascade Frog (IMAGE) Pensoft Publishers Caption This is the Sumatran cascade frog Sumaterana crassiovis in its natural habitat. Credit Umilaela Arifin Usage Restrictions CC-BY 4.0 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.