Invading Cell in <i>C. elegans</i> (IMAGE) Duke University Caption This time-lapse video of an invading cell in the lab worm C. elegans shows a fleeting protrusion that may help explain how cancer spreads. Credit Video by Kaleb Naegeli, 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.