John Jaenike (IMAGE) University of Rochester Caption John Jaenike of the University of Rochester investiagates the influence of Wolbachia, a parasite that alters the sexual behavior of its host, and of other species. Credit University of Rochester 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.