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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the domestic dog, it is derived from the extinct Pleistocene wolf; the gray wolf is the dog's closest living relative. The dog was the first species to be domesticated by humans. Experts estimate that hunter-gatherers domesticated dogs more than 15,000 years ago, which was before the development of agriculture. Due to their long association with humans, dogs have expanded to a large number of domestic individuals and gained the ability to thrive on a starch-rich diet that would be inadequate for other canids.

The dog has been selectively bred over millennia for various behaviors, sensory capabilities, and physical attributes. Dog breeds vary widely in shape, size, and color. They perform many roles for humans, such as hunting, herding, pulling loads, protection, assisting police and the military, companionship, therapy, and aiding disabled people. Over the millennia, dogs became uniquely adapted to human behavior, and the human–canine bond has been a topic of frequent study. This influence on human society has given them the sobriquet of "man's best friend". (Full article...)

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The Jack Russell Terrier is a British breed of small terrier. It is principally white-bodied and smooth-, rough- or broken-coated, and can be any colour.

It derives from dogs bred and used for fox-hunting in North Devon in the early nineteenth century by a country parson, Jack Russell – for whom the breed is named – and has similar origins to the modern Fox Terrier. Though closely similar, it is a distinct and different breed from the Parson Russell Terrier. (Full article...)

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A dachshund dressed in homage to the legend of the naming of the hot dog.

Credit: Jessadactyl

The naming of the modern American hot dog is supposedly influenced by the dachshund. In 1852, the butcher's guild in Frankfurt am Main created a smoked, spiced sausage in a thin casing, dubbed a "little-dog" or "dachshund sausage" for its obvious resemblance to the low-riding German dog. The popular legend on the etymology of hot dog holds that a cartoonist named Tad Dorgan attended a polo match in New York in 1901 where vendors roamed the aisles imploring patrons to "get your red-hot dachshund sausages." Enchanted, Dorgan drew a smiling dachshund nestled in a long bun, but couldn't spell dachshund, so he captioned it "hot dog!" and thus the food got its name.

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Sussex Spaniel Clussexx Three D Grinchy Glee being presented with Best in Show in 2009

The title of "Best in Show" is given to the dog chosen as the winner of the Westminster Kennel Club Dog Show according to conformation show rules. It has its origins in the variety classes for champions that were introduced in 1905 which included prizes for best champion dog and best champion bitch. The title of Best in Show at Westminster has been awarded every year beginning in 1907 except for 1923 when changes in American Kennel Club rules prohibited mixed breed judging until a uniform process could be adopted; following further changes in rules it was awarded again in 1924.

The Westminster Kennel Club Dog Show is an all-breeds conformation show. It has been held in New York City, New York annually since 1877. It was held at Madison Square Garden for the first time in 1880, and is currently held in the modern arena of the same name. Dogs are first placed in breed specific classes for Best of Breed, with the winners moving on to the respective breed group. Winners from each group then compete for the title of Best in Show. In each class, the individual dogs are judged against the breed standard of each dog breed. (Full article...)

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The following are images from various dog-related articles on Wikipedia.

Image 1The nose of a dog (from Dog anatomy)
Image 2A drawing by Konrad Lorenz showing facial expressions of a dog - a communication behavior. X-axis is aggression, y-axis is fear. (from Dog behavior)
Image 3Reduction in size under selective breeding – grey wolf and chihuahua skulls (from Domestication of the dog)
Image 4West Highland White Terrier puppies (from Puppy)
Image 5President Lyndon B. Johnson with a basket of puppies in 1966 (from Puppy)
Image 6Lateral view of a dog skull, jaw closed (from Dog anatomy)
Image 7Australian Cattle Dog puppy (from Puppy)
Image 8Cart dogs, c. 1900; different in appearance but doing the same work (from Dog type)
Image 9An extinct Turnspit dog, 1800 (from Dog type)
Image 10Mammoth bone dwelling, Mezhirich site, Ukraine (from Domestication of the dog)
Image 11Basenji puppy (from Puppy)
Image 12Newborn Basenji puppies (from Puppy)
Image 13A mongrel puppy (from Puppy)
Image 14The dog's retina shows the optic disc and the eye's vasculature. (from Dog anatomy)
Image 15The difference in overall body size between a Cane Corso (Italian mastiff) and a Yorkshire terrier is over 30-fold, yet both are members of the same species. (from Domestication of the dog)
Image 16The dog diverged from a now-extinct population of wolves 27,000–40,000 years ago immediately before the Last Glacial Maximum, when much of the mammoth steppe was cold and dry. (from Domestication of the dog)
Image 17NASA astronaut Leland D. Melvin with his dogs Jake and Scout (from Dog behavior)
Image 18Schematic anatomy of the ear. In dogs, the ear canal has a "L" shape, with the vertical canal (first half) and the horizontal canal (deeper half, ending with the eardrum) (from Dog anatomy)
Image 19Sled dog types, sketched in 1833 (from Domestication of the dog)
Image 20Puggle puppy (from Puppy)
Image 21Cave wolf skull, Natural History Museum, Berlin (from Domestication of the dog)
Image 22Bloodhound puppy (from Puppy)
Image 23Basset Hound (from Puppy)
Image 24Chihuahua mix and purebred Great Dane (from Dog breed)
Image 25"Five different types of dogs", c. 1547. (from Dog breed)
Image 26Sled dogs, 1833 (from Dog type)
Image 27A dog's whiskers (from Dog anatomy)
Image 28St. Bernard puppy (from Puppy)
Image 29Sled dog types, sketched in 1833 (from Dog breed)
Image 30Diagram of a wolf skull with key features labelled (from Domestication of the dog)
Image 31Tesem, an ancient Egyptian sight-hound (from Dog breed)
Image 32Watercolor tracing made by archaeologist Henri Breuil from a cave painting of a wolf-like canid, Font-de-Gaume, France, dated 19,000 years ago (from Domestication of the dog)
Image 33Example of a dog making prolonged eye contact with a human (from Domestication of the dog)
Image 34Mandible of the oldest recognised dog discovered in Bonn-Oberkassel, Germany, and dated 14,200 years old (from Domestication of the dog)
Image 35German Spitz puppy (from Puppy)
Image 36A wolf mandible diagram showing the names and positions of the teeth (from Dog anatomy)
Image 37Lateral view of a dog skull, jaw opened (from Dog anatomy)
Image 38Dog knee (from Dog anatomy)
Image 39Cavapoo puppy (from Puppy)
Image 40Scent-rolling (from Dog behavior)
Image 41Frontal view of a dog skull (from Dog anatomy)
Image 42A little mongrel puppy on the shore, on Halong Bay (from Puppy)
Image 43Petroglyph depicting two dogs hunting – Tassili n'Ajjer, Algeria (from Domestication of the dog)
Image 44Montage showing the morphological variation of the dog. (from Dog breed)
Image 45Golden Retriever puppy (from Puppy)
Image 46Skeleton of a dog:
1. Cranium
2. Maxilla
3. Mandible
4. Atlas
5. Axis
6. Scapula
7. Spine of scapula
8. Humerus
9. Radius
10. Ulna
11. Phalanges
12. Metacarpal bones
13. Carpal bones
14. Sternum
15. Cartilaginous part of the rib
16. Ribs
17. Phalanges
18. Metatarsal bones
19. Tarsal Bones
20. Calcaneus
21. Fibula
22. Tibia
23. Patella
24. Femur
25. Ischium
26. Pelvis
(from Dog anatomy)
Image 47Bison surrounded by grey wolf pack (from Domestication of the dog)
Image 48Two Shih Tzu puppies (from Puppy)
Image 49A dog's teeth (from Dog anatomy)
Image 50Lateral view of a dog skeleton (from Dog anatomy)
Image 51Newborn Welsh Springer Spaniels (from Puppy)
Image 52An 1897 illustration showing a range of European dog breeds (from Dog breed)
Image 53The difference in body size between a Cane Corso (Italian mastiff) and a Yorkshire Terrier is over 30-fold; both are members of the same species. (from Dog anatomy)
Image 54Montage showing the coat variation of dogs. (from Dog anatomy)
Image 55Chihuahua puppy (from Puppy)
Image 56Jack Russell Terrier puppy (from Puppy)
Image 57The Greenland dog carries 3.5% genetic material inherited from a 35,000-year-old wolf from the Taymyr Peninsula, Arctic Siberia. (from Domestication of the dog)
Image 58A labradoodle puppy and a Golden Retriever puppy playing together. (from Puppy)
Image 59External anatomy (topography) of a typical dog: 1. Head 2. Muzzle 3. Dewlap (throat, neck skin) 4. Shoulder 5. Elbow 6. Forefeet 7. Croup (rump) 8. Leg (thigh and hip) 9. Hock 10. Hind feet 11. Withers 12. Stifle 13. Paws 14. Tail (from Dog anatomy)

Did you know (auto-generated) - show different entries

... that Snoop Dogg's original lyrics about cannabis for the song "Sunday" were sung over by Ben Rector to keep the song clean?
... that Dan Lanning, who coached his final game at Georgia in the 2022 College Football Playoff National Championship, will face Georgia in his first game as the new head coach at Oregon?
... that Pyrenean Mountain Dogs were urgently introduced onto French farms in the 1990s to protect flocks from wolves that had arrived from Italy?
... that according to legend, dogs who travelled through a passage between Piper's Hole in Tresco and Piper's Hole in St Mary's emerged without most of their fur?
... that 9,000 Greek Jews were targeted by the 1942 Eleftherias Square roundup, and those who collapsed were attacked by dogs?
... that Stan Brakhage's film Sirius Remembered shows the decomposition of the corpse of his family's dog?

More did you know... - show different entries

...that Laurence Mancuso was the founding abbot of the Eastern Orthodox monastic community of New Skete (pictured), which is known for its dog training?
...that "On the Internet, nobody knows you're a dog" is the most reproduced cartoon from The New Yorker magazine, and its title a phrase still used around the world?
...that the famous quote "No man who hates dogs and children can be all bad" generally attributed to Leo Rosten was actually first used in 1930 by future war correspondent Byron Darnton?
...that the expressions 'top dog' and 'underdog' may originate with the two sawyers in a saw pit?

...when lying down, dogs rest on their haunches, not their stomachs?
...that Nipper was the mixed-breed dog who was the model for the painting His Master's Voice, which was later used logos and advertising for several brands, including RCA Records.
...that the Canadian Kennel Club was founded in 1888, four years after the American Kennel Club?
...that the Greyhound is one of the fastest breeds of dog, and can reach speeds of 72 km/h (45 mph)?

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Stubs : Aksaray Malaklisi, Alopekis, Argentine pila dog, Armant (dog), Banjara Hound, Barbado da Terceira, Braque Dupuy, Bruno Jura Hound, Bulgarian Scenthound, Cane Lupino del Gigante, Cane Paratore, Cantabrian Water Dog, Český fousek, Faroese Sheepdog, Georgian Shepherd, German Spitz Mittel, Gończy Polski, Grand Griffon Vendéen, Himalayan Sheepdog, Hygen Hound, Indian Spitz, Japanese Terrier, Kaikadi (dog), Koyun dog, Kumaon Mastiff, Levriero Italiano, Mahratta Hound, Majorca Ratter, Montenegrin Mountain Hound, Northern Inuit Dog, Phu Quoc Ridgeback, Plummer Terrier, Porcelaine, Pyrenean Mastiff, Rampur Greyhound, Romanian Mioritic Shepherd Dog, Romanian Raven Shepherd Dog, Sapsali, Sarabi dog, Sardinian Shepherd Dog, Schweizer Laufhund, Segugio Italiano, Segugio Maremmano, Segugio dell'Appennino, Sinhala Hound, Slovak Cuvac, South Russian Ovcharka, St. Hubert Jura Hound, Stichelhaar, Taigan, Tazy, Telomian, Treeing Cur, Vikhan Sheepdog, Villano de las Encartaciones, Villanuco de Las Encartaciones, White Shepherd, White Swiss Shepherd Dog, Xiasi Dog More stubs...
Other : Tag and assess "dog" articles with {{WikiProject Dogs}} banner. See also Dog breeds WikiProject to do list.

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