A small, compact terrier standing about 15 inches tall at the shoulder. The dog's body is muscular and slightly elongated, built for speed and agility. Its coat is short, dense, and smooth, predominantly white in color. The dog's most striking features are its black head and a large black spot on its haunches, contrasting sharply with the white body. A slender white tail, about 10 inches long, protrudes from the black spot on its rear. The terrier's face is alert and intelligent, with large, expressive eyes that convey both determination and a hint of mischief. Its ears are upright and triangular, constantly swiveling to catch every sound. The muzzle is medium-length and powerful, housing a set of sharp teeth suited for its ratting heritage. The dog's paws are slightly curved and strong, adapted for digging and navigating various terrains. Its stance is confident and ready, suggesting both its scrappy nature and its capacity for swift action. Despite its small size, weighing between 10 to 20 pounds, the terrier exudes an aura of tenacity and fearlessness. Its overall appearance is that of a skilled hunter and survivor, hardened by the challenges of a post-apocalyptic world.