All breeds of pooches have their own special features which make them uniquely special and puptastically adorable. That's why we love them. Some are small and dainty, others are the complete opposite and are great big beautiful beasties with lots of muscle. There are even some which have more brawn than brain, but still make incredibly loving pets. It's true, the larger than life, heavyweight breeds of the canine world really do make pawsome fur buddies. Do some breeds have more muscle than others? They certainly do. Check out these top extremely muscular breeds to find out which ones.