Invisible Anatomy in the Fruit Fly Uterus (IMAGE) University of California - Davis Caption Colored view of the female lower reproductive tract of Drosophila. Uterus in purple, sperm storage and support organs in gold and bronze. The first study of single-cell gene expression in Drosophila uterus reveals more than 20 new cell types with various functions. The discoveries could help understanding of fertility and reproduction both in insects and more generally. Credit Rachel Thayer/UC Davis Usage Restrictions May be used with acknowledgment. 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.