Fruit Fly Auditory Organ (image) University of Iowa Share Print E-Mail Caption Located within the antenna of a fruit fly, the auditory organ (pictured) is shown being activated in response to the fruit fly love song. The sodium pump is stained in green, while blue highlights nuclei and red stains the cytoskeletal protein, actin. Credit Image provided by Madhuparna Roy. 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.