C. elegans (image) University of Cologne Share Print E-Mail Caption The nematode C. elegans is an important model organism for aging research. Even though it gets only one millimeter long and lives for three weeks, the same process are important in aging as in humans. Credit Diletta Edifizi Usage Restrictions None Share Print E-Mail 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.