The Jack-A-Ranian is a mix between a purebred Jack Russell Terrier and a purebred Pomeranian. They are called hybrid dogs due to their origination from two different pure breeds.
The Jack-A-Ranian is a small dog that stands up to 15 inches and weigh in the region of 6 to 14 pounds. They are like a Jack Russell Terrier in facial and body structure but have characteristics of both parent breeds.