Used to guard sheep in Europe, the Pyrenean Mountain Dog is of a large, solid build. With a thick, white coat they easily blend in with the sheep they are guarding. Due to their natural instinct, the Pyrenean Mountain Dog can be protective of their family, though are generally placid and affectionate. They sport a thick, weatherproof coat that requires frequent attention to keep it neat and clean. Pyreneans are not well suited to small residential yards, though do not require copious amounts of exercise.