To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Dimming response of wild type and pristine larvae. This thirty second movie, captured at 10 frames per second, is shown at 5-times normal speed. Dimming is evident at the midpoint of the movie. Bar in frame one equals 1 cm. Photoreceptor specialization and the visuomotor repertoire of the primitive chordate Ciona Priscilla Salas, Vall Vinaithirthan, Erin Newman-Smith, Matthew J. Kourakis, and William C. Smith Journal of Experimental Biology 2018. 221:None-None; doi: 10.1242/jeb.177972 Download Original Video