Guts of <I>C. elegans</I> (IMAGE) Duke University Caption The guts of C. elegans worms are highlighted by a green fluorescent protein that is produced when the nervous system is targeted by genetic modifications or by drugs used in humans. Credit Alejandro Aballay Lab, Duke 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.