The Science Behind Those Big Ol' Puppy-Dog Eyes, Smart News

Our canine friends evolved extra muscle fibers around their eyes and mouths that allow them to make facial expressions humans find adorable

HGTV Stars and 'The Power of the Puppy', HGTV News

Humans may have influenced evolution of dogs' eye colour, researchers say, Dogs

The evolution of 'puppy dog eyes

Your Dog Is Smarter Than You Think: Research and Studies About Communicating With a Canine - PetHelpful

Mastiff Dog Breed Information & Characteristics

National Puppy Day: yawning, walkies and puppy dog eyes, Life and style

The science behind 'puppy dog eyes

Real reason why dogs do puppy eyes at owners - and it's very, very clever - Mirror Online

The science behind puppy eyes - Times of India

101 Dog Love Quotes That Perfectly Capture the Power of Pets

Your dog may love you, but doesn't love the sight of your face, study finds

In the Eyes of a Dog, Science

Is My Dog Too Old For Anesthesia? - Dr. Buzby's ToeGrips for Dogs