Mongrel or purebred dog? Usually, such a question arises before people to whom a puppy or an adult dog has come across by accident. For example, you could not pass by a cute lump on the sidewalk or an adult cute dog followed you in whose eyes you can read such a thirst to find a home that you could not pass by - and a new pet appeared in your house!
Very often, adult dogs get lost or they are simply thrown out onto the street by careless owners. Often these are purebred animals that are only to blame for falling into the hands of bad people. To find out what breed of the found dog, you should contact experienced dog breeders. If there are no such friends among your acquaintances, you can go to a dog breeding club, find a dog handler, or show a new family member to a veterinarian. Experts will be able to accurately answer your questions, as well as recommend literature and Internet resources on the breed of interest. Do not forget that the dog could simply get lost, so it would be fair to post advertisements with a photo of the animal and your coordinates around the area so that the owners could recognize their "lost".
If you get an "unidentified" puppy, it is also better to show it to a specialist. After "identification", be sure to give your baby anthelmintic drugs, wash it in warm water with dog shampoo, treat it against fleas and first observe the health and behavior of the animal to protect yourself and your family from diseases common to humans and dogs.
The need to determine the breed often arises for people who want to take a puppy not from the breeder, but on the "bird" market. Here you cannot do without the help of a specialist, because very often unscrupulous sellers sell mestizos or mongrels under the guise of purebred animals. For example, you can make a mistake when choosing a German shepherd dog, which up to two months of age are very similar to ordinary yard puppies.
If you nevertheless bought or found your pet and hoped that it is purebred, and the specialist revealed an obvious "non-noble" origin - do not be discouraged! In most cases, such animals have no less intelligence and beauty than their titled counterparts. After all, the most important thing in a dog is not kilometer-long pedigrees, but love and devotion, which are not measured either by brilliant cups or show titles!