Rescued Hybrid Male Fruit Fly (IMAGE) University of Utah Caption By disabling a gene that kills or sterilizes the hybrid offspring of two fruit fly species, University of Utah-led researchers 'rescued' a male hybrid fruit fly that normally would have died in its larval stage. Black dots in this image of its brain show cells are dividing normally. Credit Aida de la Cruz, Fred Hutchinson Cancer Research Center 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.