Dr. Norman Warthmann with a Water Sample (IMAGE) Pensoft Publishers Caption Dr. Norman Warthmann takes one of the numerous samples (here a water sample) during their three-month fieldwork. Credit Christian Wurzbacher Usage Restrictions CC-BY 4.0 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.