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|Domestic cat (Felis catus)|
A Cornish Rex is a breed of domestic cat. The Cornish Rex has no hair except for down. Most breeds of cat have three different types of hair in their coats: the outer fur or "guard hairs", which is about 5 cm long in shorthairs and 10 cm+ long in longhairs; a middle layer called the "awn hair"; and the down hair or undercoat, which is very fine and about 1 cm long. Cornish Rexes only have the undercoat. The curl in Cornish Rex fur is caused by a different mutation and gene than that of the Devon Rex. It originates from Cornwall, England.
The coat of a Cornish Rex is extremely fine and sometimes curly, the softest of any cat breed. However, their light coat means that they are best suited for indoor living in warm and dry conditions, as they might get hypothermia if they stay outdoors in the winter. Their body temperature of 39 °C (102 °F) is slightly higher than that of most cats, with Cornish Rexes tending to hang around warm places such as computer monitors, light bulbs, laps and shoulders. Some Cornish Rexes also have a mild cheesy smell peculiar to the breed; this odor comes from scent glands in the paws.
Often the breed is referred to as the Greyhound of the cats, because of the sleek appearance and the galloping run characteristic of the breed. These cats tend to stay playful and kittenish throughout their long lives. Some Cornish Rexes like to play fetch, race other pets, or do acrobatic jumps. The Cornish Rex is an adventurous cat and is very intelligent. It can readily adapt to new situations and will explore wherever it can go, jumping into refrigerators, examining washing machines, etc. The Rex is extremely curious, seeks out the company of people and is friendly towards other companion animals. It is a suitable pet for timid children.
Cornish Rex cats come in a wide variety of coat colours and patterns, outlined in the breed standard: solids, including white, black, chocolate, orange and the dilutes blue, lilac and cream; all forms of tabby including classic, mackerel and ticked tabbies, bicolor "tuxedo" coat in many colours, tortoiseshell, "smoke" colours and the colour-point pattern standard in the Siamese breed.
The Cornish Rex is a genetic mutation that originated from a litter of kittens born in the 1950s on a farm in Cornwall, UK [note added June 2013: citation Observer Sunday supplement science column 'A New Look In Cats' 31 January 1965 pp4–5/birth of 'Kali' dated to 'about 12 years ago']; hence the first part of the breed's name. One of the kittens, a cream-colored male named Kallibunker, had an extremely unusual, fine and curly coat; he was the first Cornish Rex. The owner then backcrossed Kallibunker to his mother to produce 2 other curly-coated kittens. The male, Poldhu, sired a female called Lamorna Cove who was later brought to America and crossed with a Siamese, giving the breed their long whippy tails and big ears.
The Devon Rex looks similar in appearance to the Cornish Rex, but has guard hairs and sheds. The Devon Rex mutation is different from the Cornish Rex mutation in that the Devon has shortened guard hairs, while the Cornish Rex lacks guard hairs altogether. Crosses between Devon and Cornish Rexes are not permitted in pedigrees and matings between them will not produce a cat with short wavy fur. Another hair-deficient breed is the Sphynx cat, which has no hair but may have a very light coat of fuzz.
Using the word "Rex" to imply curly or otherwise unusual fur originates from an occasion when King Albert I of Belgium (1875-1934) entered some curly-haired rabbits in a rabbit show. They did not meet the breed standard, but the show's officials did not wish to risk offending the king by rejecting them. Instead, they accepted them but wrote "Rex" (Latin for "king") beside their names.
Cornish Rex (and other Rex breeds) are at risk for dangerous and potentially deadly side effects due to certain anesthetics. Veterinary medical care providers should err on the side of caution, and use special milder anesthetics for surgery.
Despite some belief to the contrary, the Cornish Rex's short hair does not make it non- or hypo-allergenic. Allergic reactions from cats are not the result of hair length, the true culprit is a glyco-protein known as Fel d1, produced in the sebaceous glands of the skin, saliva, and urine. Most people who have cat allergies are reacting to this protein in cat saliva and cat dander: when the cat cleans its fur, the saliva dries and is transformed into dust which people breathe in. Since Cornish Rex cats groom as much as or even more than ordinary cats, a Cornish Rex cat can still produce a reaction in people who are allergic to cats. However, it is widely reported to cause lesser to little allergic reaction. It is recommended a potential owner visit a cattery to check their own tolerance. Note that, for more serious allergies, there are several breeds theorized to lack or produce less of the offending protein, see allergy to cats.
- Animal Planet television series: "Cats 101" episode:"Colorpoint Shorthair"
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