Inside the Burrow (IMAGE) University of the Witwatersrand Caption This image shows a mammal like reptile nestled with a primary aquatic amphibian. Credit ESRF V. Fernandez Usage Restrictions NOT FOR PUBLICATION UNTIL 17:00 EST/21:00 GMT/23:00 SATS ON 21 JUNE 2013 License Licensed content Disclaimer: AAAS and EurekAlert!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.