Jill McDermott, Lehigh University (IMAGE) Lehigh University Caption Lead author Jill McDermott performing a chemical analysis called titration to analyze the hydrogen sulfide content of vent fluid samples onboard the R/V Falkor in 2013. Credit Image Credit: Julie Huber Usage Restrictions 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.