These small freshwater flatworms can redevelop heads, eyes, tails, and internal organs—even when sliced into multiple pieces. Every fragment forms a complete worm.

Nocturnal animals like cats have a tapetum lucidum layer behind their retina, enhancing vision in low light.

Researchers have developed eye drops that extend vision in animal models of a group of inherited diseases that lead to progressive vision loss in humans, known as retinitis pigmentosa.

Some animals have more than two eyes, making them unique in the animal kingdom.

Some animals have eyes that are so amazing, they look out of this world.

Most animals have two eyes, but some have multiple for enhanced vision. Let's explore seven animals that posses more than two eyes.

The animal kingdom showcases a stunning array of eye adaptations, each tailored to unique survival needs. From the enormous, night-vision eyes of tarsiers to the stalk-eyed fly's bizarre mating ...

Chameleon Chameleons have one of the most unique and striking eyes in the animal kingdom. Their eyes can move independently, allowing them to have a 360-degree field of vision.

But did you also know that they also have the largest eyes of any land animal? In fact, their eyes are so large that they dwarf their own brains by comparison. Ostrich eyes are really big.

Kansas State University veterinary students are learning to use animal eye exam equipment using 3-D printing technology.

From ostriches with eyes as big as billiard balls to fearsome giant squids, these creatures have some of the largest peepers among the world's animals.

See the World Through the Eyes of Animals With These Stunning New Videos By making ultraviolet light accessible to our eyes, a novel camera system reveals how insects, birds and other creatures ...