There are traditional ways to organize dog breeds. For example, in the United States they are organized into the following "groups": terrier, sporting, non-sporting, toy, working, hound and herding groups. Well a group of DNA specialist have examined the genetics of dogs. This leads to common versus specific genetic traits. They have found 10 groups of dogs that were genetically similar. And put them in the format below.
The farther from the center, the more genetically specialized they are. It is interesting. (Select to enlarge). Retrievers and Scent-hounds are the most specialize.
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