To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2 The response of an eye-removed slug to the illumination to the head with 440 nm monochromatic light. Light avoidance by a non-ocular photosensing system in the terrestrial slug Limax valentianus Haruka Nishiyama, Akane Nagata, Yuko Matsuo, and Ryota Matsuo Journal of Experimental Biology 2019. 222:None-None; doi: 10.1242/jeb.208595 Download Original Video