Eye discharge is a common problem for some dogs. It can be a sign of anything from infection to glaucoma to allergies. At the first sign of these symptoms, it’s best to take your dog to the vet.

Previous research papers published in 2019 and in 2022 theorised that dogs evolved new muscles around their eyes specifically because this facilitated more effective communication with humans.

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 ...

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 ...

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 ...

“Puppy-dog eyes didn’t just evolve for us, in domestic dogs,” says comparative anatomist Heather Smith. Her team’s work has thrown a 2019 finding that the muscles in dogs’ eyebrows ...