This breed is native to Argentina. A man named Antonio Nores Martinez bred this dog to hunt boar and puma, while intending to breed out aggression toward other dogs and to interact well with with children.
Despite the controversy that surrounds a muscular, tough dog like this, he’s an example of why dogs are great.
People actually come to visit Morocho, who became a canine hero after rescuing two young girls from a puma! Below is a clip from 101 Dogs, with the amazing story of Morocho (which of course gets blasted all over the internet as being fake).