These dogs are the group of working and the use of the dog today is a Guardian . These life span is six to ten years old . These dogs coat is straight and short and the grooming is brushing weeking . The height is not less than 30 inches for the males and the females are not less than 27 inches . The weight is 110 to more than 200 pounds and the average is 190 pounds . These dogs are were used for war dog , hunter , estate guardian and blood sport but today they are used for lovable pets and guard dogs . They pefer to have children to protect and a yard for him to play in . Will like to have 1 to 2 miles a day . These dogs drools so you might want to carry a towel . These dogs are the decendents from the Tibetan Mastiff .