In these dogs, the iris, which is the colored part of the eye contains a low level of pigmented cells (melanin). This allows light to scatter more giving the appearance of blue. This optical ...

Polly is a beautiful dog with light brown fur and soulful eyes; her one flaw (if you can even call it a flaw) is that she is heartworm-positive. Luckily, Polly is being treated and recovering well ...

How do dogs see the world? Dogs see differently than humans. The reason lies within the eye. In the eye are light receptors called cones and rods. Cones help us distinguish different colors ...