English mastiff height chart

The mastiff, also known as the English mastiff or Old English mastiff, is one of the oldest dog breeds known to man. They are famous for their extra-large size and have historically played an important role in protecting humans as a guard and even a wartime aid.

While the dog is not especially common in the U.S., owners who do adopt a mastiff quickly realize he's a gentle and calm family addition—and perfectly content to laze on the couch. A yard is a bonus for mastiff owners, but not a necessity.

And while the mastiff's grooming needs are minimal, they're not exactly tidy animals: The dog's drooling is excessive—and can even end up on your ceiling.