Toy dog term teacup dog, thus the toy/teacup boundary remains fuzzy. The standard size for a toy dog ranges from 4 to 7 pounds; anything smaller than the standard size of a toy dog may be a runt of a litter. No official size defines a teacup dog, but unofficially a teacup dog is considered to be a dog that is 17 inches or less and weighs 4 lbs or less at the age of 12 months. There are no specific teacup dog breeds, but popular types for breeding teacup dogs include: Shih Tzu, Chihuahua, Yorkshire Terrier, Poodle, Pug, Maltese, Pomeranian, and
Miniature Fox Terrier Miniature Fox Terrier The Miniature Fox Terrier is a small, fine, lightweight working terrier developed as a hunting dog and vermin router. It is known colloquially in its native Australia as the “Mini Foxie”. A balanced, smoothly-muscled dog breed, the Miniature Fox Terrier has a small sized, distinctive head with erectile ears that can stand straight up or fold at the tips. Another distinguishing feature is its articulate, oval-shaped foot - a feature found in very few small breeds of dog. The breed standard has always allowed for the dog's tail to be docked or undocked, however owners need to