To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1. Representative instances of shimmering in both colonies used in this study. Defensive shimmering responses in Apis dorsata are triggered by dark stimuli moving against a bright background Sajesh Vijayan, Eric J. Warrant, and Hema Somanathan Journal of Experimental Biology 2022. 225:None-None; doi: 10.1242/jeb.244716 Download Original Video