Earthworm (IMAGE) Spanish Foundation for Science and Technology Caption The presence and role of earthworm in the ecosystem greatly enhance the quality of the soils where they live. Credit María Jesús Briones 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.