The Mastiff, sometimes called the English Mastiff, is a massive, heavy-boned guardian with a broad head, dark mask and short fawn, apricot or brindle coat. Large guard dogs have lived in Britain for centuries, and the modern breed was rebuilt from a handful of dogs after World War II. Adults commonly weigh anywhere from 120 to 230 pounds.
Most Mastiffs are dignified and good-natured, with a quiet protectiveness toward home and people, though every dog varies. They shed moderately, drool and snore. Because they're so heavy, early reward-based training and sturdy gear matter. Hillside streets and porch steps are worth a thought, too. Their lifespan is often under ten years, so expect the senior years sooner than with smaller breeds.