<i>Caenorhabditis elegans</i> Nematode (Roundworm) (IMAGE) McGill University Caption This is an adult Caenorhabditis elegans nematode (roundworm) stained to reveal all muscles. Credit Siegfried Hekimi Usage Restrictions Please credit for use 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.