Earthworms (3 of 3) (IMAGE) Imperial College London Caption Earthworms in rich organic soil. As they burrow, the worms consume soil in order to remove nutrients from decaying organic matter such as leaves and roots. Credit Dr. Manuel Liebeke, Imperial College London 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.