What does calico look like?

Calico cats can be many different breeds, specifically the ones that come in a variety of colors, such as Manx, American Shorthair, British Shorthair, Persian, Japanese Bobtail, Exotic Shorthair and Turkish Van, etc. Only females can be calico because their sex chromosome is XX, allowing three colors, whereas male chromosome is XY, only allowing two or less. It is hard to explain but that is the reasoning behind the lack of male calico cats.