A male Saint Bernard can get up to 180 pounds and is known for being extremely protective, according to the American Kennel Club.
While the average Mastiff can stand about 30 inches tall and weigh up to 230 pounds, they are said to be gentle giants. These dogs are powerful, yet affectionate and do best with older children, according to the AKC.
These dogs work hard and play harder. They are historically known as working dogs, and their muscular exteriors prove it. However, they are also extremely playful and always up for a good game of fetch.
Traditionally, huskies have worked as sled dogs, pulling large loads to their destinations. But, inside the home, they are known to be very playful and energetic, according to AKC.
Dobermans got their start in the late 19th century, when a German tax collector named Louis Dobermann wanted a medium-sized pet to act as both a guard dog and companion.
According to Hill's, Great Danes fall in two categories of breeds: Working and Guardian. And although massive, they are also playful and affectionate and will welcome tons of cuddles.
These dogs are skilled hunters and are known to be powerful athletes as they have both a muscular build and speed. But don't let them fool you: they tend to have a gentle temperament.
If you're looking for a graceful yet muscular pup, you've found your match. The Irish Wolfhound just looks intimidating. It is actually too sweet to be a guard dog. These pups can be great family dogs,
German Shepherds have one of the most powerful bites, which is why the breed is often used for law enforcement, military and protection. But don't let that deter you from adopting.