Also called Ca de Bou, this dog is of Spanish origin. It measures between 50cm and 60cm and is very powerful and massive. Its head is proportionally larger than the body. Its hair is short and hard, they can be black, brindle or fawn, sometimes with white patches. It is a peaceful and loving companion who will be very loyal and obedient with its owners. It is also an excellent guard that will make the difference between strangers and guests, it never is aggressive .