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|Princess Ekaterina Dmitrievna Golitsyna with a Pug, 1759.|
|Dog (Canis lupus familiaris)|
A lapdog or lap dog is a dog that is both small enough to be held in the arms or lie comfortably on a person's lap and temperamentally predisposed to do so. Lapdogs are not a specific breed, but is a generic term for a type of dog of small size and friendly disposition.
Lapdogs historically were kept in many societies around the world by individuals with leisure time, as docile companion animals with no working function. Genetic analysis reveals that lapdogs are among the earliest specific types of dogs to live with people. Today, most lapdog breeds fall into the Toy breed group.
Some lapdogs have been bred for extremes of small size, such as the Russian and Mexican varieties shown below. Anatomically, lapdogs show distinct differences from their full-sized counterparts. The skull of the immature Russian lapdog from an 1861 specimen (possibly an ancestor of the Bolonka) is approximately the size of a table-tennis ball and shows the relatively short muzzle and high forehead. Many lapdogs are bred to retain puppy-like traits (neoteny) such as folded ears. Body proportions may also have changed, resulting in relatively short legs and large heads. They may also have traits that resemble human babies: size and weight, high forehead, short muzzle and relatively large eyes. Although selective breeding for such traits can have detrimental effects on tear ducts, dentition, and breathing, such traits also serve to cause pet owners to derive more satisfaction from their pet relationship, as the pet owners may view dogs with this appearance as surrogate babies.
History and breeds 
Lapdogs have been used for pets, fashion accessories, status symbols, and to provide warmth for the wealthy and fashionable. Lapdogs were also used in earlier times to attract fleas away from their owners. Some lapdogs were developed as pets while others, among the terrier group, for example, were first bred for active work. Most kennel clubs list lapdog terriers in the Toy Group.
Recent genetic study confirms that the Pekingese lapdog, bred in ancient China to fit inside the sleeves of a man's robe, is one of the oldest breeds of dog. For centuries, they could be owned only by members of the Chinese Imperial Palace. Similarly ancient are the lapdog ancestors of the modern breeds of Tibetan Terrier, Lhasa Apso, Pug, and Shih Tzu.
In the book De Canibus Britannicis published in English in 1576, the author describes lapdogs as a type of dog, "Spaniel Gentle or Comforter". Ancestors of the modern breed of Cavalier King Charles Spaniel were a type of "Spaniel Gentle" kept by English nobility in the 17th century.
According to the 1948 publication Dogs In Britain, A Description of All Native Breeds and Most Foreign Breeds in Britain by Clifford LB Hubbard, the Sleeve Pekingese was (in Hubbard's time) a true miniature of the standard-sized Pekingese and was also known as the Miniature Pekingese. The name Sleeve Pekingese came from the custom of carrying these small dogs in the capacious sleeves of the robes worn by members of the Chinese Imperial Household. Hubbard indicated that this tradition appeared to be early Italian rather than Chinese, but its adoption by the Chinese Imperial Household led to dogs being bred as small as possible and to practices aimed at stunting their growth: giving puppies rice wine, holding new-borns tightly for hours at a time or putting the puppies into tight-fitting wire mesh waistcoats. These practices were apparently forbidden by the late Dowager Empress Tzu Hsi.
In Hubbard's time, the term Sleeve was applied in Britain to a miniature Pekingese no more than 6–7 pounds in weight, often appearing to be only about 3–4 pounds. Mrs Flander’s Mai Mai weighed only a little over 4 pounds and many other breeders had bred true miniatures of a similar size. Hubbard noted that miniatures sometimes appeared in litters bred from full-sized Pekingese and were exhibited in classes for dogs less than 7 pounds at the major dog shows in Britain. At that time, the Sleeve Pekingese had a strong following with the most popular colours being cream and white.
Pugs are by far the largest of the lap dogs. They originated in China at about 400 AD to satisfy the royalty of the Shang Dynasty. Pugs are famous for their wrinkled black face, curly tail, and snorting noises. Pugs became increasingly popular throughout the years and were transported all over Asia. Later on they were brought to Europe and finally to the Americas in the 20th century. These dogs share similar genes with Pekingese dogs.
Chihuahuas are one of the smallest lap dog breeds. They have their origins in Mexico. They are famous for their big pointy ears, high pitched bark, and small size.
Shih Tzu 
Shih Tzu (singular and plural) is one of oldest breeds the roots of which trace back to Tibet and China where they were bred to resemble lions. They ideally range from 9-16 lbs and are considered an ideal lap dog for an out-going family.
Extinct lapdog breeds 
The Russian Lapdog and the Mexican Lapdog' were not breeds in the modern sense, but were types of small dogs from Russia and Mexico respectively. The individuals shown here are juveniles and are shown with a Griffon Bruxellois to indicate scale. The immature Mexican Lapdog specimen is approximately the size of a golden hamster. Adult specimens are not on display. During the 19th century it was fashionable to mount immature specimens to look like adults, giving a false impression of adult size.
From: The Illustrated Natural History (Mammalia) by the Rev John George Wood, 1853
- The very tiniest of the Dog family is the Mexican Lapdog, a creature so very minute in its dimensions as to appear almost fabulous to those who have not seen this animal itself. One of these little canine pets is to be seen in the British Museum, and always attracts much attention from the visitors. Indeed, if it were not in so dignified a locality, it would be generally classed with the mermaid, the flying serpent, and the Tartar lamb, as an admirable example of clever workmanship. It is precisely like those white woollen toy Dogs which sit upon a pair of bellows, and when pressed give forth a nondescript sound, intended to do duty for the legitimate canine bark. To say that it is no larger than these toys would be hardly true, for I have seen in the shop windows many a toy Dog which exceeded in size the veritable Mexican Lapdog.
Idiomatic use 
Lapdog is also used jokingly to refer to a dog of any size that likes to climb onto a person's lap for affection. The Great Dane has sometimes been called the world's biggest lap dog.
The term lapdog is also used to describe a submissive person, such as a "yes" man, or an institution that can be very easily controlled (as in the lapdog press in contrast to the tougher, more confronting watchdog press).
See also 
- Why do people love their pets? by J. Archer, Evolution and Human Behavior, Volume 18, Issue 4, Pages 237–259
- Bruce Felton and Mark Fowler (1994). "Fashion and Grooming". The Best, Worst, and Most Unusual. New York: Galahad Books. p. 538. ISBN 0-88365-861-5.
- "Genetics and the Shape of Dogs; Studying the new sequence of the canine genome shows how tiny genetic changes can create enormous variation within a single species, by Elaine A. Ostrander". American Scientist (online). americanscientist.org. September–October 2007. pp. page 2, chart page 4. Retrieved 08/09 2008.
- "Shih Tzu: A Lap Dog". Retrieved 2011-07-23.
- The Illustrated Natural History (Mammalia) by The Rev J G Wood. 1853.
- Dogs In Britain, A Description of All Native Breeds and Most Foreign Breeds in Britain by Clifford LB Hubbard. 1948.