Najash (IMAGE) University of Alberta Caption New research from a collaboration between Argentinian and University of Alberta palaeontologists adds a new piece to the puzzle of snake evolution. Credit Raúl Gómez Usage Restrictions with credit to Raúl Gómez.jpg 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.