However, most cats with heterochromia (which is also referred to as "odd colored eyes") are white, because melanin is ...

Eye color is determined by the amount of melanin present in the iris of the eye, which develops as newborn babies grow.

When it comes to rare colors in purebred dogs, what really matters isn’t the shade of their coat but how responsibly they’re bred and raised. An Isabella German Shepherd, like the gorgeous puppy below ...