The Parsons Jack Russell Terrier is an official dog breed so, therefore, a Jack Russell can be a purebred dog.
Sparky, the dog in the film "Michael," is a Jack Russell Terrier.
jack Russell's are used for rabbit hunting
Jack Russell terrier also called parson Russell terrier.
Jack Russell Terrier
A Jack Russell is a breed of terrier.
A Jack Russell Terrier.
Jack Russell Terrier
Nipper, the iconic RCA dog, was a mixed-breed dog believed to be part Jack Russell Terrier and part Bull Terrier. He gained fame for listening intently to a gramophone, which became a symbol of quality sound for RCA products.
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.
Wishbone, a fictional dog from the television series of the same name, is a Jack Russell Terrier.
A Jack Russel Terrier.