<em>Drosophila</em> Tumor (IMAGE) CNRS Caption Tumor cells, expressing green fluorescent protein, in digestive tract of the fruit fly Drosophila melanogaster. A dense tumor (left) is visible in the anterior midgut. Credit Andreu Casali Usage Restrictions May only be used with appropriate caption and credit. 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.