Bull Terriers have been known to be loyal family companions for some time now but they also happen to be one of the most aggressive dog breeds.
This breed originated in Africa for the purpose of protecting livestock from lions, yes lions. Rhodesign Ridgebacks are powerful dogs and are capable of being exceptionally brutal.
Another African-bred dog, the Boerboel originated in South Africa where it was bred to guard farmers’ livestock against leopards and lions.
Originating in the Swiss/Italian Alps, Saint Bernards have been used for centuries as rescue dogs to save people from avalanches.
This breed is incredibly intelligent and affectionate but does require a lot of exercise and an experienced dog owner.