40+ independent eye originations across phyla (Salvini-Plawen-Mayr 1977); shared deep homology via Pax6 master-regulator (Quiring 1994); camera-eye in cephalopod / vertebrate / cubozoan jellyfish.
40+ independent eye originations across phyla (Salvini-Plawen-Mayr 1977); shared deep homology via Pax6 master-regulator (Quiring 1994); camera-eye in cephalopod / vertebrate / cubozoan jellyfish.