Movie 1.

An example of a typical experimental trial video. A forward-facing 12 second recording of the vial mount from the automated apparatus showcasing 10 wild type cohorts. Vials 1-3 contain yw females (N=7 flies/vial), vial 4 contains CS females (N=6), vial 5 contains w¹¹¹⁸ females (N=3), vial 6 contains w¹¹¹⁸ males (N=5), vial 7 contains CS males (N=5), vials 8-10 contain yw males (N=4,6,5 respectively).