It should be known that not every animal has eyes. Most animal species (especially invertebrates like nematodes, annelids, flatworms, sponges, etc.) do not have eyes. Estimates suggest only about ...

Human eyes are only one solution among many. This episode explains why animals evolved slit pupils, compound eyes, and ...

Professor Lars Schmitz joins WIRED to guide us through a giant tree of life mapping the evolution of eyes in the animal kingdom: how they work, why they've taken the form they have, and the ...

One of the most common adaptations seen in the animal kingdom is vision. Nearly 96% of all animals have some kind of eyes and they've proven so evolutionary advantageous that they've evolved multiple ...

Cats and many other animals, including most dogs, can reflect light from their eyes. That’s why cats’ eyes will usually shine brightly in photos taken in a dimly lit room or glow when illuminated in ...

"Why do albino animals have red eyes?" Producer Felix Poon went looking for the answers. This has been lightly edited for clarity.

Eyes are such a normal part of our everyday life that we rarely stop to think about how much they shape the way we live. They help us read, work, travel, connect with people, and understand everything ...

A bright red mass suddenly appears in a dog's eye. Is it painful? How did it develop? Here is all you need to know about cherry eye in dogs.

As the days inched closer to Monday's historic total solar eclipse, medical experts emphasized the importance of wearing proper eye protection, warning those who don't could suffer potentially severe ...

Eyes gleaming out of the pitch-dark night make for many a scary tale. But what's behind that pair of glowing eyes, and why don't humans' shine? Why Do Animals' Eyes Glow In The Dark? Eyes that glow in ...