||This article needs additional citations for verification. (June 2009)|
|1 year old Russian Blue Male (American Style).|
|Alternative names||Archangel Blue, Archangel Cat|
|The ACF and GCCF also recognize Russian Blues in white and black, however the CFA does not. In addition, ACFA recognizes Russian Shorthairs in white, black, and blue.|
|Domestic cat (Felis catus)|
The Russian Blue is a cat breed that has a silver-blue coat. They are relatively intelligent and playful, but tend to be timid around strangers. They develop close bonds with their human companions and are sought out as pets due to their personalities and coat.
The Russian Blue is a naturally occurring breed that may have originated in the port of Arkhangelsk, Russia. They are also sometimes called Archangel Blues. It is believed that sailors took Russian Blues from the Archangel Isles to England and Northern Europe in the 1860s. The first recorded appearance outside of Russia was in 1875 at the Crystal Palace in England, as the Archangel Cat. The Russian Blue competed in a class including all other blue cats until 1912, when it was given its own class.
The breed was developed mainly in Russia and Scandinavia until after World War II. Prior to this, a lack of numbers of Russian Blues led to cross breeding with the Siamese. Although Russian Blues were in America before the war, it was not until the post-war period that American breeders created the modern Russian Blue that is seen in the US today. This was done by combining the bloodlines of both the Scandinavian and English Russian Blues. The Siamese traits have now been largely bred out. Unfortunately for breeders and showers, the short hair slate gray/blue color is often seen in mixed-breed cats.
Russian Blues are short-haired, blue-gray cats. They usually have green eyes. They have been used on a limited basis to create other breeds (such as the Havana Brown) or alter existing breeds (such as the Nebelung).
During the early 1970s, a solid white Russian Blue (called the Russian White) was created by Australian breeder Mavis Jones through the crossing of a Russian Blue with a domestic white cat. By the late 1970s, the Russian White and Russian Black colors were accepted by cat fanciers in Australia as Russian cats (in different classes). However, in North America, the Cat Fanciers Association does not recognize either variation of the Russian Blue.
Physical characteristics 
The Russian Blue has bright green eyes, two layers of short thick fur, and a blue-gray coat. The color is a bluish-gray that is the dilute expression of the black gene. However as dilute genes are recessive ("b") and each parent will have a set of two recessive genes ("bb") two Russian Blues will always produce a blue cat. The coat is known as a "double coat," with the undercoat being soft, downy, and equal in length to the guard hairs, which are an even blue with silver tips. The tail, however, has very dull, almost unnoticeable stripes. Only Russian Blues and the French Chartreux have this type of coat, which is described as thick and soft to the touch. The silver tips give the coat a shimmering appearance. Its eyes are almost always a dark and vivid green. Any white patches of fur or yellow eyes in adulthood are seen as faults in show cats.
Russian Blues should not be confused with British Blues (which are not a distinct breed but rather a British Shorthair with a blue coat; the British Shorthair breed itself comes in a wide variety of colors and patterns), nor the Chartreux or Korat which are two other naturally occurring breeds of blue cats, although they have similar traits.
Behavioral characteristics 
The Russian Blue is an intelligent, curious, and tranquil animal. They are known for their friendliness, but are shy with strangers. They have been known to play fetch, and are sensitive to human emotions. They enjoy playing with a variety of toys and develop loyal bonds to their loved ones. The Russian Blue gets along well with other pets and children in a household. They can be quiet, only meowing occasionally, but can also be very talkative. They are clean animals that are normally reserved around strangers, unless they are brought up in an active household. They love to play with other small pets, such as dogs, cats and ferrets. Many Russian Blues have been trained to do tricks. They are a very intelligent breed.
Growth and Maturity 
Russian Blues have an average life expectancy of around 10–15 years, and have few health problems as they tend to have little to no genetic problems and are not prone to illness. They are a moderate-sized cat with an average weight of 3.5 to 7 kilograms (8-15 pounds) when full grown. Males will typically be larger than females. Their gestation period is approximately 65 days.
Anecdotal evidence suggests that the Russian Blue may be better tolerated by individuals with mild to moderate allergies. There is speculation that the Russian Blue produces less glycoprotein Fel d 1, one source of cat allergies. The thicker coat may also trap more of the allergens closer to the cat's skin.
See also 
- Russian White, Black and Tabby
- Nebelung, a moderately-long haired breed which used the Russian Blue as an outcross.
References and sources 
- "Breed Profile: Russian Blue". Retrieved 2008-05-06.
- Alderton, David (1992). The Eyewitness Handbook of Cats. Dorling Kindersley. p. 182. ISBN 1-56458-070-9.
- "Is my cat a Russian Blue?". Retrieved 2011-10-06.
- "History of the Russian White". North American Russian White Association. Archived from the original on 2008-02-14. Retrieved 2007-11-29.
- Columbia Electronic Encyclopedia (2011). Cats. pp. 1–2.
- Helgren, J. Anne (1999). "Rhapsody in Blue". Cat Magazine 55 (12): 54, 4.
- "Russian Blue Growth and Maturity Information". Retrieved 2009-05-06.
- Breed profile, Russian Blue Breed Standard and Breed article at Cat Fanciers' Association
-  Interactive CFA Russian Blue Standards and scoring
- CFA Russian Blue Breed Council
- Russian Blue Information
- Blue Shorthaired Cat Information
- Stichting Blauwe Rus-Russian Blue Foundation