(IMAGE) Max Planck Institute for Chemical Ecology Caption Shimaa Ebrahim, the first author of the study, comes from Egypt and works at the MPI as a PhD student. She is studying olfactory-directed behavior in Drosophila. Credit Anna Schroll 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.