The photoreceptors mediating light sensitive behaviours in Lepidochitona cinerea
Simple vision and the non-visual photoreceptors precursors have given rise to an evolutionary arms race in spatial vision. Chitons have non-visual photoreceptors, called aesthetes, but in some species aesthetes lack pigmentation therefore the function is uncertain, although prevailing theory is that they are photosensory. Here I provide support for this theory using the robust shadow response of L
