There’s a reason why the domestic cat’s pupil has its distinctive, vertical slitted shape and the grazing goat’s its horizontal, flattened look. In both cases, the eye’s shape has evolved to help its ...

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 ...

It's easy to think of pupils as simple holes that widen in the dark and shrink in the light. But if you look across the animal kingdom, you'll see a variety of pupil shapes: vertical slits in cats and ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Cats are full of little mysteries that make them perpetually fascinating to us, and one of the most interesting things about them ...

Cats are full of little mysteries that make them perpetually fascinating to us, and one of the most interesting things about them is their eyes. They come in a variety of incredible colors and ...

There's a reason why the domestic cat's pupil has its distinctive, vertical slitted shape and the grazing goat's its horizontal, flattened look. In both cases, the eye's shape has evolved to help its ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...