Bred to protect sheep grazing on the open range by himself for a week or more at a time, the courageous Great Pyrenees, known as the Great Pyrenees Mountain Dog outside North America, develops his own keen intelligence to rely on. He uses this same judgment in his role as an outstanding protector of home and family. He is affectionate and gentle with his family including small children, especially those with which he is raised. His unyielding loyalty is usually reserved for those he establishes bonds with as a puppy. Once that bond is established, it is for life. A Great Pyrenees frequently uses his booming bark, especially at night to avoid confrontation. But if he determines there is an oncoming threat to either his livestock or human flock, he takes on the role of protector. Watch for the potential that he may interpret normal rough and tumble play with neighborhood children as something he needs to protect his children against with potentially unfortunate results. Aloof with strangers, he wants to know they mean no harm before accepting them. He typically accepts family pets he is raised with, canine or otherwise; but will likely drive off unfamiliar animals. Despite being a capable watchdog and fierce protector, the Pyr, as his fans call him, exhibits a calm and steadfast demeanor both inside and out. More watchful than playful, he is never underfoot nor tearing from room to room. A long daily walk meets his modest need for exercise. But keep him on leash or in a large, secure area with a strong fence because they have a tendency to roam. Some sober or drool.

One of the giant breeds, most measure 25-32 inches tall and weigh between 85 and 130 pounds with males larger than females. They are white or white marked with gray, reddish brown, badger and/or varying shades of tan. The coat is flat, thick and either slightly wavy or straight. A Great Pyrenees' coat needs Stiff brushing several times per week, especially during their seasonal shed. But they still shed heavily. Those unwilling to accept tufts of white dog hair floating throughout the house should consider another breed. Their heavy coat gives them the ability to adapt easily to frigid temperatures and results in their extreme discomfort in warm climates.

Key to understanding the Great Pyrenees is to understand this breed was developed to guard sheep for a week or more at a time with no human assistance. So they were bred to be a large, independent, dominance-seeking dog that relies on its own judgment to determine what is and is not important. The breed exhibits an innate curiosity and as one would expect, possesses an independent streak. Obedience training and early socialization with children and other pets is mandatory and should never be allowed to become a battle of wills. They are prone to ignoring mundane or repetitious commands due to its independent, somewhat stubborn nature. Ground rules, proper training, and socialization should begin from the first day the pup enters your home. Clearly, this is not a dog for a passive or first-time dog owner.