Normally, new breeds of dogs appear naturally in nature by crossing other breeds, and this, without the human being having to intervene. But humans being what they are, they have intervened many times to evolve dog breeds according to human preferences, criteria and needs. This, combined with evolution, has resulted in drastic changes in the appearance of some dogs. Here are the breeds of dogs whose appearance has completely changed due to human intervention.
10. Boxers
The boxer is a breed of dog developed in Germany at the end of the 19th century. He was bred from the now extinct Bullenbeisser, a mastiff-like dog, and bulldogs imported from Britain. Unfortunately, artificial selection has made this dog quite stunted and susceptible to various diseases.
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