How is the English Mastiff similar to the Bullmastiff?

However, the English mastiff has the potential to become a much larger dog than the bullmastiff - I believe male English mastiffs can easily exceed 200 lbs whereas the bullmastiff male is more in the vicinity of 120 lbs. read more

Bullmastiff vs English Mastiff . Bull mastiff and English mastiff are large sized dog breeds with many differences exhibited between them. Their countries of origin, colours and other coat characteristics, sizes, temperament, and health concerns are comparatively different between bull mastiff and English mastiff. read more

Differences between the mastiff and bullmastiff are more subtle than obvious. They are both massive, powerfully built canines, loyal to their owners and quite protective. They are closely related, with the "bull" in bullmastiff originating from crosses with bulldogs in the 19th century. read more