Calico describes a coat of white with patches of black and orange, or gray and cream in the dilute version. The pattern shows up in domestic shorthairs and longhairs and in several pedigreed breeds. Because the orange and black color genes sit on the X chromosome, nearly all calicos are female, and the rare males are usually sterile.
Most calicos adopters meet are domestic shorthairs, so size, coat and health look like those of an ordinary house cat: usually 6 to 12 pounds, living 12 to 18 years, with moderate shedding that a weekly brushing handles. Coat color doesn't predict personality, despite the "tortitude" reputation. Meeting the cat and watching how she handles people and other pets tells you far more than her patches do.