The Siberian is a centuries-old landrace (natural variety) of domestic cat in Russia and recently developed as a formal breed with standards promulgated the world over since the late 1980s. Siberians vary from medium to medium-large in size. The formal name of the breed is Siberian Forest Cat, but it is typically referred to as the Siberian or Siberian cat. Another formal breed name is the Moscow Semi-Longhair. The cat is an ancient breed that is now believed to be ancestral to all modern long-haired cats. The cat has similarities with the Norwegian forest cat, to which it is likely closely related. It is a natural breed from Siberia and the national cat of Russia. While it began as a landrace, it is selectively bred and pedigreed today in at least seven major cat fancier and breeder organizations. The colorpoint variant of the breed is called the Neva Masquerade by some registries, including Fédération Internationale Féline (FIFé). (Source: Wikipedia.org, CC BY-SA)