Fighting female fruit flies (VIDEO) Howard Hughes Medical Institute This video is under embargo. Please login to access this video. Caption Video showing female fruit flies where the aIPg neuronal cell type is activated, promoting aggressive behavior. The researchers used computer vision-based methods to track the flies in the video, as shown by the yellow and red ellipses. Credit Katie Schretter, Kristin Branson, Alice Robie, Adam Taylor, and Janelia Experimental Technology / HHMI Janelia Research Campus Usage Restrictions Please use caption and credit provided. License Original 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.