If you've ever gazed into a house cat's eyes and wondered why they don't look like yours or even like those of big cats like tigers, you were onto something. The shape of an animal's pupils is linked ...

While the eyes may be a window into one's soul, new research led by scientists at the University of California, Berkeley, suggests that the pupils could also reveal whether one is a hunter or hunted.

Have you ever looked at a cat and wondered why on earth they have such creepy slits for pupils? Scientists previously thought slit pupils were an advantage for being active both day and night because ...

Slit-shaped pupils help animals adjust their eyes to see clearly day or night, but that attribute doesn’t explain why some animals have horizontal slit pupils and others have vertical ones. A study ...

Hello all, it’s Manasee Wagh, service and news editor at PopMech. Years ago, I had a cat named Cyrus. I used to stare at him staring at me, and wonder what he was thinking. He had beautiful gold-green ...

A domestic cat’s eye narrows to a razor-thin vertical slit in bright sunlight, while a grazing sheep stares out through a wide horizontal bar. These are not cosmetic quirks. A 2015 study in Science ...

Vertical pupils weren’t just made for night vision. It turns out they may also help snakes stalk prey without being seen. Richard Shine and Francois Brischoux at the University of Sydney, Australia, ...

This week a study has been published which shows why 214 land animals have certain types of eyes. Goats, for example, have horizontal pupils, while cats have pupils that are largely vertical. It would ...

A land animals' ecological niche is a strong predictor of pupil shape, a new analysis has found. Species with pupils that are vertical slits are more likely to be ambush predators that are active both ...

Berkeley -- While the eyes may be a window into one's soul, new research led by scientists at the University of California, Berkeley, suggests that the pupils could also reveal whether one is a hunter ...