To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Experimental setup showing a triggerfish selecting targets. An Ishihara-style test of animal colour vision Karen L. Cheney, Naomi F. Green, Alexander P. Vibert, Misha Vorobyev, N. Justin Marshall, Daniel C. Osorio, and John A. Endler Journal of Experimental Biology 2019. 222:None-None; doi: 10.1242/jeb.189787 Download Original Video