How can I tell if a Great Pyrenees is a purebred?

The Great Pyrenees will give the owner a feeling of solid peace of mind, it was born to be a very good guard dog, at the same time it is very loyal to the master, calm and brave nature, loved by people, in the selection of the Great Pyrenees many people do not know how to distinguish the Great Pyrenees is not purebred, the following to introduce you to the characteristics of the various parts of the purebred Great Pyrenees it. The skull of the Great Pyrenees is in the shape of an arch, very large, with a thick, very powerful snout and mouth. The nose is black in color. From the skull to the muzzle, it tapers a little, with a few wrinkles in between. The ears of the Great Pyrenees are triangular and small, usually lying flat, and only slightly tilted up when working. The Great Pyrenees’ almond-shaped eyes are a deep yellowish teal color, and it has dark orbits. The Great Pyrenees has a very strong, sturdy body with a very broad chest, a broad, straight back, and very well-developed musculature. The coat of the Great Pyrenees can be straight or wavy, with a very long, thick upper coat that is coarse; the lower coat is fine but also very thick. The color of the coat can be divided into: white, white with cave bear-like markings, wolf fur colored gray and light yellow. The Great Pyrenees has very straight forelimbs with very well developed muscles, a very dense, thick, straight coat, and two layers of wolf paws. The Great Pyrenees has very firm feet that are somewhat short. The toe bulge is not very pronounced and the paws are very powerful and very thick. The Great Pyrenees has a very long tail with a thin end. Its tail hair is very dense and plentiful, and the end of its tail is somewhat curled, and if it is in a happy mood, it will hold its tail high on its back. Overall, the Great Pyrenees has a large body and a majestic, elegant demeanor. In addition to looking at the above characteristics of each part of the Great Pyrenees, it is also necessary to scientifically test the dog’s pedigree and the lineage of its parents.