Very interesting question. It is obviously due to a evenly distribution of melanin between the two eyes. In huskies it always includes one eye blue (1). read more
In huskies it always includes one eye blue (1). The reason is that this breed was developed by inbreeding together with the standards of the breed allowing blue eyes, and also heterochromia (for example malamute's standard is brown eyes, and heterochromia is not allowed), so the condition is not restricted by those standards. read more