The massive and majestic Tibetan Mastiff has developed over thousands of years in isolation in the unforgiving Himalayan mountain range. Prized for its physical and mental fortitude, this breed has and continues to be a keen and fearless protector of families and their livestock. While it can adjust to family life and tends to be well-behaved indoors, its protective instincts remain strong. Even with early and consistent socialization and training, the Tibetan Mastiff may always be territorial and suspicious of strangers. Regular brushing of its thick double is required to keep it looking sharp and free of mats.