Origins of the breed
Jack Russell Terriers are believed to be one of the most active and agile small dog breeds in the world. Despite originally being developed in England in the mid-1800’s, the Jack Russell Terrier has only been recognised as a pedigree breed by the U.K. Kennel Club since January 1st, 2016.
This is because the Jack Russell Terrier was previously identified as a “type” and not a breed due to the wide diversity of dogs that were described as Jack Russell Terriers. The breed standard as recognised by the U.K. Kennel Club is still to be drawn up.