Loyal, loving cats, their personality is often described by many as dog-like in their devotion. The Siberian is a slow growing breed taking five years to mature. The male Siberian ranges in size from approx. 12 lbs - 18 lbs with some larger, the female approx. 8 lbs - 12 lbs.
Altered cats can be larger.
The Siberian is an ancient breed believed by some geneticists to be the original longhair breed that all other longhaired cats are descendent from.