The Jack Russell has been strictly bred for hunting since its beginning in the early 1800s.īecause of their broad genetic make-up, there is some variance in the standard of Jack Russell terriers. The Jack Russell is a baying terrier, meaning the dog should flush out the fox with his steady barking but is never to kill his prey. The breed takes its name from the Reverend John Russell, who bred one of the finest strains of terriers for working fox in England. The Jack Russell terrier is a true working terrier.
