On my way home I ran into this cute kitten who surprisingly let me take a photo, waiting patiently. Then I wanted to investigate the reason for his small eyes and this is what I found: It is an eye anomaly in which the irises are a different color; It can also affect the skin or hair, but the most common case is the eyes, totally or partially. Complete heterochromia is most common in cats, although it can affect humans. Most often, the cat has one blue eye and one brown eye. It also occurs among dogs, especially in the Siberian Husky and Dalmatian breeds.