Boating Down the River Purus (IMAGE) Lancaster University Caption This image shows boating down the River Purus as part of fieldwork. Credit Dr. Daniel Tregidgo Lancaster University Usage Restrictions Please credit Dr Daniel Tregidgo, Lancaster University. 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.