Contact: Lori Oliwenstein
California Institute of Technology
Caption: Two male flies exhibit the "lunging" behavior that indicates aggression in Drosophila. Lunging consists of a fly rearing up on its hind legs and snapping down with its forelegs on its opponent.
Credit: Caltech/Liming Wang and Michael Maire
Usage Restrictions: With credit as given above.
Related news release: Caltech scientists discover aggression-promoting pheromone in flies