Lisette Mekkes during her PhD research. (image) Naturalis Biodiversity Center Share Print E-Mail Caption Lisette Mekkes during her PhD research to sea butterflies at research vessel "Discovery" in the Southern Ocean. Credit Credits: Katja Peijnenburg, Naturalis Biodiversity Center. Usage Restrictions Credits mentioned. Share Print E-Mail 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.