10 Biggest Dog Breeds

The South African mastiff, or boerboel, is stocky, robust, and powerful at 150–200 pounds.

Great Danes can weigh 200 pounds, but most people are astonished by how sociable and placid they are.

Though not the heaviest breed, the Irish wolfhound is the tallest dog breed.

English mastiffs and Old English mastiffs are ancient breeds used for hunting and guarding.

Neapolitan mastiffs are terrifying due to their size, wrinkled skin, and serious demeanor.

Newfoundland, Canada, is where it started. European fisherman brought their dogs to Newfoundland, where the topography and environment bred a new breed.

Monks in the Swiss Alps devised the Saint Bernard to search for trapped pilgrims in the snow.

Tosa Inu, also known as the Japanese mastiff, was derived from the Shikoku breed in Japan.

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