Dr. Ceri Lewis, University of Exeter (IMAGE) University of Exeter Caption This is Dr. Ceri Lewis from the University of Exeter with sample bottles. Credit Al Humphries-Catlin Arctic Survey 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.