5. Dogo Argentino
Muscles, teeth and bones – that’s how this breed can be described. This species of dogs is raised in Argentina for hunting. Luckily, these dogs are not too aggressive towards people. Nevertheless, some European countries do not allow citizens to keep the breed.
6. Saint Bernard
You might think that rescue dogs are nice, kind and friendly. However, saint bernards are huge and can be too dangerous if not trained well. Their behavior can be rather wild at times.