Fairy circles on a Namibian plain. (IMAGE) Spanish National Research Council (CSIC) Caption Fairy circles on a Namibian plain. Credit Audi Ekandjo. Usage Restrictions You are free to share the material. Attribution is required. License Original 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.