What Is Cherry Eye in Dogs? Dogs have a third eyelid called a nictitating membrane, which protects the eye. Inside the membrane is a gland called the nictitans gland that produces tears ...

When a dog stares at you with big, sad, puppy dog eyes, it's easy to imagine that this adorable look is meant specifically to melt your heart (and score some treats). But new research shows that ...

Dogs have the most beautiful eyes, it's honestly a little bit unfair. They don't even understand how beautiful eyes can be, and yet they have the most beautiful ones of all? Whose idea was that?!

Arno Meintjes via Flickr under CC BY-NC-SA 2.0 DEED Puppy-dog eyes are irresistible. Many dogs have mastered this iconic, sad-sweet expression, which they use to look up at their human owners ...

Saying no when Fido gives you his best “puppy-dog eyes” can be extremely difficult. For thousands of years, dogs have been cajoling people by making this pitiful, adorable expression—an ...