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
Vulnerable dog breeds of the United Kingdom "SOS: Save our Sealyhams," and launched a campaign to save the breed. The Otterhound, popular during the time of Henry VIII, has numbers of less than a thousand world wide and is described by the British & Irish Dog Breeds Preservation Trust as "twice as rare as the Giant Panda." The list was originally compiled in January 2006, and included 28 breeds. Later in 2006, the Miniature Bull Terrier was added. In 2007, after consultation with the breed clubs involved, the Bloodhound, Gordon Setter and King Charles Spaniel were re-classed as "Viable" rather than vulnerable. The English Setter is the