A cat owner took to the internet to ask for advice when she noticed that her eight-month-old kitten's eyes looked a little odd. Cecile, who lives in Denmark with her cat Smitty asked Reddit's r/cats ...

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 ...

Have you ever wondered why your cat's eyes have those creepy vertical slits for pupils? A new study suggests the reason may lie in cats' preferred mode of hunting. Vertical-slit pupils are most common ...