How to tell a Jack Russell Terrier from a Roger Terrier is through three main points: height, coat color and head. The Jack Russell Terrier will not exceed 40 cm in height and has a small body size. Jack Russell Terrier coat color is mostly white based, with brown, yellow and black hairs scattered on the body. The Jack Russell Terrier has a flat head with very widely spaced ears. Button ears, almond-shaped eyes, and dark circles around the eyes.
