Tentacles of Nematostella (IMAGE) Lehigh University Caption Tentacles of Nematostella with subpopulation of neurons expressing red fluorescent protein. Credit Michael Layden, Lehigh University 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.