Boerboel
The Boerboel, which is actually a South African Mastiff, is one of the heaviest purebreds out there. These dogs are not just loyal and social, but they are also intelligent and protective. Its heavy weight of 200 pounds makes up for its ‘short’ 28 inches. These dogs quite often attend dog training school and learn how to track, herd and even run obstacle courses.
Boerboel
Leonberger
It’s amazing what results appear when you mix breeds. One example of that is the Leonberger, which is a mix of the Saint Bernard with the Newfoundland. These dogs weigh 170 pounds and can stand at 31 inches tall at full growth.
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Leonberger
