Some creatures with the most unique eyes in the world When we think about how animals experience the world, one of the first ...

Pupil shapes vary widely across the animal kingdom, from the W-shaped pupils of cuttlefish to the bar-like pupils of goats.

Nevertheless he imagined gradation from simple-eyed animals with pigment-coated nerves to ones with eyes of a “high stage of perfection”, such as our own. 11 weirdest, bizarre ...