You will also notice that a Jack Russell Terrier’s tail will stand erect when alert but can go limp when the dog is in a relaxed state. They have very strong jaws with upper teeth closely overlapping lower teeth and set square to the jaws. If the black slightly exceeds the white, which makes it difficult to determine the percentage of colors, it can be regarded as a flaw, but not a defect.Ī Jack Russell Terrier tends to have a button or dropped ears, while these v-shaped ears should have moderate thickness. It is important that the coat is waterproof.Īccording to the breed standard, white must be the dominant color (at least 51 percent) but with injections of black coloring. Smooth coats shouldn’t be sparse, while rough coats shouldn’t be wooly. The smooth coat should still be able to withstand the activities and elements for which these dogs were bred.
This allows for some variety within the breed between smooth and rough coated JRTs. The Black and White Jack Russell’s coat is predominately white but it may be smooth, broken, or rough.
