The Mastiff is the largest dog in the world, with males reaching up to 230 lbs in weight and 36 inches in height. It is not to be trifled with.
This breed requires gentle training and socialization so that its tremendous power does not cause harm to others.
The Boerboel, the second-largest dog breed in the world, is native to South Africa, where it has been employed to protect isolated homesteads from leopards and baboons.
If you can handle up to 220 pounds of dog, the Boerboel is smart, eager to learn, and loves people.
Even though the Newfoundland isn't as big as some of the other dogs on this list, males can weigh up to 150 lbs. and females can reach around 120 lbs.
They are very loyal to the people they love and trust a lot. They get along well with almost everyone, including other dogs.
The Great Dane is a beautiful mixed-breed dog. Males can weigh up to 175 lbs. and females can weigh up to 140 lbs.
This breed can grow to be 32 inches tall and is friendly, patient, and reliable. They are also sweet and easygoing, which makes them a joy to live with.
The Saint Bernard's wrinkled brow, short muzzle, and playful, charming, and inquisitive nature make them a friendly dog.
Males can weigh up to 180 pounds and reach a height of approximately 30 inches, while females normally reach 140 pounds and 28 inches.