Adult mayfly (IMAGE) Center for Genomic Regulation Caption The mayfly, one of the 20 species studied in the paper Credit Isabel Almudi Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.