Every dog breed has its own characteristics but some stand out more for their uniqueness. One that can be placed in this category is the Tibetan Mastiff. They are considered to be extremely intelligent. Although often called the gentle giant of the canine world they do need a firm owner and proper training. For the most part they are child friendly and a good majority of them get along with cats. Their weight can run between 80 to 150 pounds. They are heavy shedders as they have a double coat but this only takes place once a year. Here is a collection of these beautiful dogs each showing their own personality.