The Bernese Mountain dog is a beautiful, robust dog that is believed to be an ancestor of the Mastiff. They have a medium length tri-color coat that is unmistakable. The Bernese Mountain dog is a gentile, large-boned breed that loves all people. They are calm for their size and surprisingly do not require a large amount of exercise. They do however require daily grooming. The Bernese Mountain Dog is a unique gem and will thrive being around all people.