My neighbours bought a english mastiff - it is HUGE! It does look more like a horse than a dog to me, and I would definitely think twice about breaking into their house if I knew there was one of those monsters in there! The first thing I thought when I saw the english mastiff was that it can't possibly be a dog that gets very old. Is that true? What is the life expectancy of an english mastiff?
Best dogs in the world! Life expectancy is 8-10 yrs.