What is a Merle chihuahua?
When bringing up types of chihuahuas, a Merle chihuahua isn’t an official “type” recognized by the AKC for chihuahuas, but rather a special coating type for dogs. The Merle is a gene modifier that affects the pigmentations in dogs that changes the color of their coating. The gene also affects the color of their eyes which normally results in blue eyes or more unusual colors.