Iguana burrow illustration (IMAGE) Emory Health Sciences Caption Illustration shows a cross section of the prehistoric iguana burrow, and how the surrounding landscape may have looked during the Late Pleistocene Epoch. Credit Illustration by Anthony Martin. Usage Restrictions Must include 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.