Professor Xavier called heterochromia iridum a “groovy mutation” in X-Men: First Class. David Bowie was famous for having it. Heterochromia iridum is a difference in coloration, usually of the eyes, and you may have seen it in dogs, people, or other animals. There are a few different causes, but it usually has to do with a difference in melanin that changes the color of the irises. The dogs in these photos all have two different colored eyes, and their unique looks make them stand out. Here are 30 dogs with heterochromia iridum.
Does your dog have different colors of eyes? Do you like the way these pups’ eyes look? Let us know in the comments below!