Please notice here review on small size puppies.
small size puppies pictures
In line with the diversity of today’s pet dog breeds, scientists think that the dog was created by crossing many associated species from the dog family. Included in this, Charles Darwin  and the ethologist of Austria, Konrad Lorenz, had been the initiators of the theory of evolution, who concluded that the ancestors of the domestic canine had been a wolf and a jackal. Today’s founded opinion, supported by the outcomes of genetic analyzes, can be that the domestic doggie developed from the small band of wolves, domesticated about 15,000 years ago.
It isn’t known just how the domesticated doggy was held. It is possible that canines were the people who produced the initial step. Namely, if crazy dogs began to be small enough to be unsafe, to visit human they could collect waste, camps and discarded bones. Thus, people probably tolerated them because they were cleaning their surroundings. It is possible they have begun to fascinate, approach them, and domesticize them as guard dogs and companions then. It was only once agriculture had been progressing that the herds could possibly be preserved. Or otherwise: the dogs implemented a smarter collection in the hope of getting anything from prey.
The initial remains of a domestic puppy were discovered in Mesolithic sites in various places. It seems that the initial European breed was quite small and would generally be best in comparison to today’s small dog.
Many breeds originate from a small amount of animals, that leads to mating in kinship. The effect is various hereditary (genetic) illnesses common in a few breeds, for example hip dysplasia (especially in German shepherds), epilepsy, ataxia, oculoskeletal dysplasia, and others