Paul Sereno, Hans Larsson and Crocs (VIDEO) National Geographic Society 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 National Geographic Explorer-in-Residence Paul Sereno uncovers new species of crocs that lived in the Sahara 100 million years ago. Credit National Geographic Channel Usage Restrictions None 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.