Tortoiseshell is a coat colouration in domestic cats named for its similarity to tortoiseshell pattern. Tortoiseshell cats, or torties for short, combine two colours other than white in an asymmetrica
A black tortoiseshell moggy cat
Cat with a blue ("dilute", "grey") tortoiseshell coat
Schematic overview of the sex linkage of the orange (O) and non-orange (o) allele
Typical combination of black- and red-based areas on the paw-pads of a tortoiseshell cat, in this case, in a mottling pattern
A calico cat is a domestic cat of any breed with a tricolor coat of black-based and red-based pigments with white. Outside of North American English, this coat pattern is called tricolor or tortoisesh
Tortoiseshell cat
…their eumelanistic colour are tortoiseshell tabby cats, sometimes referred to as torbies or torbie cats. Like the tricoloured tortoiseshell-and-white or calico (in North American English) cats, tortoiseshell cats are almost exclusively female. Male tortoiseshells are rare and are usually sterile. Tortoiseshell…
A long-haired adult calico cat
Calico cat of blue (diluted) tortoiseshell and white
Calico cat with predominantly black coloration
Detail from Still life with Cat and fish by Jean Siméon Chardin, 1728