Samples of Prymnesium parvum (IMAGE) Purdue University Caption Nathan Watervoort, a PhD student in biochemistry at Purdue University, holds samples of Prymnesium parvum. He is a co-author of a new study on Prymnesium parvum, published recently in the journal Current Biology. Credit Purdue University photo/Tom Campbell Usage Restrictions News organizations may use this image in connection with reports about the work of Purdue University's Jennifer Wisecaver and her collaborators. License Original 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.