Worm Model (VIDEO) University of Kansas This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Under normal conditions while feeding on healthy bacteria, C. elegans digestive tracts are moderately acidic compared to human stomachs. Harmful bacteria prompted a less acidic digestive tract in C. elegans -- a result that runs counter to what one might expect if the acidic environment was generated to kill bacteria. Credit University of Kansas 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.