thier eyes are just as fascinating, unlike eyes of chordates, thier optical cord nerves go into the retina, its more invagination development during thier evolution, so the eyes of a cephalapods, optical nerves on the outside of the eye, instead of inside, so they have no blindspot.
that’s great. my favorite is that the giant squid’s esophagus goes through their brains; if they eat something too big, they can get brain damage
thier eyes are just as fascinating, unlike eyes of chordates, thier optical cord nerves go into the retina, its more invagination development during thier evolution, so the eyes of a cephalapods, optical nerves on the outside of the eye, instead of inside, so they have no blindspot.