Lunging Stance in Drosophila (2 of 2) (image) California Institute of Technology Caption One way a male Drosophila shows aggression is by "lunging," in which it rears up on its hind legs and snaps down with its forelegs on its opponent. Credit Caltech/Liming Wang and Michael Maire Usage Restrictions With credit as given above. 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.