This is exactly what happens with most Jack Russell Terriers. The ears are generally the last part of the dog to turn white.

The ears will always remain colored unless the dog has a very high amount of white. The back coloring is the next to go, followed by the tail base, then the face markings. On a piebald dog, only the head, back and tail base may still be colored. Next it spreads round from the front to the back of the neck, and creeps up the legs and tail. From there it spreads to cover the muzzle and forehead, the front of the chest, the lower legs and more of the tail tip, creating irish spotting. White starts on the farthest 'edges' of the dog - the tail tip, the tip of the muzzle, the paws and the tip of the breastbone. Whichever white pattern a dog has, its white will always follow the same rules of spread. As the good people at doggenetics in the U.K. In fact, the creep of whiteness and the addition of color tends to follow clear patterns. How much more than 51% white is a matter of preference and genetics.Ĭolor distribution on the coat of Jack Russell terriers is not random. Jack Russell Terriers are defined as being more than 51% white.

Jack russell terriers black and white