Calico describes a coat, white with patches of orange and black, or gray and cream in the dilute version, rather than a breed. The pattern appears on domestic shorthairs, longhairs and many pedigreed breeds, and nearly all calicos are female. Most calicos you'll meet are domestic shorthairs weighing about 6 to 12 pounds, with a lifespan of 12 to 18 years.
Because coat color doesn't predict personality, treat the "tortitude" reputation as folklore. A calico may be shy, chatty or independent, and moderate shedding is typical. Her care looks like any house cat's: vaccines, dental care, weight control, play and a safe indoor home. How a cat behaves with people and other pets matters far more than her patches.