Drosophila melanogaster Spermatozoa (image) Institute for Research in Biomedicine (IRB Barcelona) Share Print E-Mail Caption Top: Normal Drosophila melanogaster spermatozoa. Orange shows heads and green shows tails. Bottom: Mutant Drosophila melanogaster spermatozoa. The heads are severed from the tail ends and are dispersed. Credit Photo courtesy of S. Llamazares / Gonzalez Lab Usage Restrictions None Share Print E-Mail 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.