C Elegans with neurons visible with GFP (IMAGE) Marine Biological Laboratory Caption C. elegans worms with green fluorescent protein (GFP) inserted into their neurons to visualize neural development. Credit Photo Credit: Heiti Paves, Wikimedia Commons Usage Restrictions No restrictions. License Public Domain 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.