Because Jack Russell purists don't want the working qualities of the JRT to be diluted in the quest for the perfect show dog. Hence the creation of the Parson Russell, which is the AKC registered show dog version of the JRT. The JRT remains a breed focused more on function than form.
No. They are registered separately under JRT clubs. The AKC recognizes the Parson Russell, which is a kind of "show dog" variation on the working Jack Russell Terrier.
The Jack Russell is a smaller version of a Fox terrrier. A Fox terrier is derived from a wolf. I belive they just kept breeding small-legged Fox terriers until they got the Jack Russell terrier.
A Jack Russell is a breed of terrier.
Jack daniel
The Parsons Jack Russell Terrier is an official dog breed so, therefore, a Jack Russell can be a purebred dog.
Possibly another Jack Russell.
Jack Russell Terrier
Jack Russell Terrier
No they are in the Small Breed group.
The name of one animal that is called a jack is a Jack Russell. A Jack Russell is the name of a breed of dog. Jack Russells are very popular in the United States.
No, Jack Russell breed of dogs are not endangered. As of 2013, there is no chance that the Jack Russell Terrier are in danger of going extinct any time soon.
Jack Russell terrier also called parson Russell terrier.