Jell-O, Worms, and Marine Sediment (IMAGE) American Physical Society Caption Alitta virens burrowing in Jell-O, from the session Worms in Jell-O: Using Photoelastic Stress Analysis to Measure Burrowing Forces Credit Dorgan et al. 2007 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.