Coat
The Jack Russell Terrier has a dense double-coat that comes in three varieties: smooth, rough, and broken. The smooth coat has an outer-coat that is short and stiff. In the rough coat the outer-coat is longer. The broken variety is used to describe both dogs with outer-coats of different lengths or dogs that have longer hair on specific parts of the body. The Jack Russell Terrier is primarily white with black, tan, or tri-color markings. They shed constantly.

Overview
The Jack Russell Terri...