Heterochromia iridum is the technical name for any animal with eyes of different colors. One of the most prominent examples of this unique animal is a husky with one brown and one blue eye. It doesn’t happen very often, but scientists have agreed that the reason for heterochromia is the lack of genetic diversity. Having heterochromia iridum doesn’t affect a person or animal’s vision at all since it only affects the pigments in the iris and not the functional structure of the eye itself. In some cases, this condition could result from injury or disease later on in life.