Dog and exploring the topic
On the other hand, in the mix selective breeding, different ancestral lines mate to promote a combination of breeds. Therefore, dog breeds originate because of the selective dog breeding. The characteristics, nature and functions of a specific breed can be totally different as compare to the other dog breeds. Different types of dog breeds can be generally categorized as registered dog breeds, rare dog breeds and new dog breeds which are under development. On the functional basis there are seven categories of the dog breeds including; Companion dogs, Guard dogs, Hunting dogs, Pastoral dogs, Sled dogs, Extinct dogs, Hypoallergenic breeds and Police dog breeds.