Why Animals Have Different Pupil Shapes
animals | biology | learning | nature | wondrous walk
Ever wondered why cats have vertically elongated pupils, while their bigger cousins like lions and tigers have round ones? Or why geckos seem to have multiple round pupils? What about the W-shaped ones on cuttlefish? And what is up with those creepy goat eyes? Wondrous Walk explains the perks of different pupil shapes in this fascinating video.