Mantis shrimps have the arguably the most incredible eyes of any animal. (discovermagazine.com)
It resembles the multicellular eye of animals so much that it was originally mistaken for part of an animal the warnowiids had eaten. (sciencedaily.com)
(E and F) Sections of the control (E) and induced (F) eyes of the animal tested in (D). (journals.plos.org)