Cats have pretty unusual eyes. Instead of having circular pupils like humans, they have vertical slits — which can adapt quickly and can open and close like the aperture of a camera. Why are cat eyes ...

Cats have some of the most unique eyes in the animal world: Instead of having circular pupils like humans, the black parts in the centers of their eyes are vertical — which can adapt quickly and can ...

This sweet cat is born with galaxies in their eyes 🤩 It has something called persistent pupillary membrane, which happens when the tiny tissues that form the eyes as a kitten don’t fully disappear.

Q: My elderly cat’s pupils seem to stay dilated, even in bright light. Why? A: In old cats, dilated pupils are often just a sign of a harmless condition called iris atrophy. However, if your cat has ...

What do this cat's pupils say about what it had for dinner? Daniel Horacio Agostini/Flickr CC BY-NC-ND 2.0 How do animals find their food? Clues are as close as an animal's eyes, as Claire Maldarelli ...