<i>Drosophila simulans</i> Reproductive Tract (IMAGE) Syracuse University Caption This image shows a "Drosophila simulans" reproductive tract, following hybrid insemination by a "D. mauritiana" male (red sperm heads) and then remating with a "D. simulans" male (green sperm heads). Credit Syracuse University Arts & Sciences 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.