Portal:Dogs

The Dogs Portal

The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the gray wolf. Also called the domestic dog, it was selectively bred from an extinct population of wolves during the Late Pleistocene by hunter-gatherers. The dog was the first species to be domesticated by humans, over 14,000 years ago and before the development of agriculture. Due to their long association with humans, dogs have gained the ability to thrive on a starch-rich diet that would be inadequate for other canids.

Dogs have been bred for desired behaviors, sensory capabilities, and physical attributes. Dog breeds vary widely in shape, size, and color. They have the same number of bones (with the exception of the tail), powerful jaws that house around 42 teeth, and well-developed senses of smell, hearing, and sight. Compared to humans, dogs possess a superior sense of smell and hearing, but inferior visual acuity. Dogs perform many roles for humans, such as hunting, herding, pulling loads, protection, companionship, therapy, aiding disabled people, and assisting police and the military.

Communication in dogs includes eye gaze, facial expression, vocalization, body posture (including movements of bodies and limbs), and gustatory communication (scents, pheromones, and taste). They mark their territories by urinating on them, which is more likely when entering a new environment. Over the millennia, dogs have uniquely adapted to human behavior; this adaptation includes being able to understand and communicate with humans. As such, the human–canine bond has been a topic of frequent study, and dogs' influence on human society has given them the sobriquet of "man's best friend". (Full article...)

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A Coton de Tuléar Puppy

The Coton de Tuléar is a breed of small dog named for the city of Tuléar (also known as Toliara) in Madagascar. This breed is thought to have originated from a group of small white dogs that swam across the Malagasy channel following a shipwreck. Known for its cotton-like coat, the Coton de Tuléar typically grows to no more than 18 pounds (8.2 kg), and is white, sometimes with grey, tan, black, or tri-colored markings. (Full article...)

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Credit: Robert Southworth
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The American Eskimo Dog is a breed of companion dog originating in the United States (probably in New York City) in the twentieth century. It is derived from the German Spitz, the Finnish Spitz, and almost certainly the Pomeranian and Keeshond. The spitz family of Nordic dogs is one of the least altered by human husbandry and reflects most nearly the prototypical dog, from which stock all others have been derived. Archeology suggests that Neolithic dogs living with humans would today pass for spitzes.

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Snuppy (Korean: 스너피, romanized: Seuneopi, a portmanteau of "SNU" and "puppy"; April 24, 2005 – May 2015) was an Afghan hound, the first dog clone. The puppy was created using a cell from an ear from an adult Afghan hound and involved 123 surrogate mothers, of which only two produced pups (Snuppy being the sole survivor). The Department of Theriogenology and Biotechnology at Seoul National University, which cloned Snuppy, was led by Woo Suk Hwang. Snuppy has since been used in the first known successful breeding between cloned canines after his sperm was used to artificially inseminate two cloned females, which resulted in the birth of 10 puppies in 2008. In 2017, 4 clones of Snuppy were made by Sooam, and were the first clones made of a cloned dog, to investigate potential health effects of cloning. (Full article...)

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

Image 1Newborn Basenji puppies (from Puppy)
Image 2Cart dogs, c. 1900; different in appearance but doing the same work (from Dog type)
Image 3NASA astronaut Leland D. Melvin with his dogs Jake and Scout (from Dog behavior)
Image 4Petroglyph depicting two dogs hunting – Tassili n'Ajjer, Algeria (from Domestication of the dog)
Image 5Mammoth bone dwelling, Mezhirich site, Ukraine (from Domestication of the dog)
Image 6Lateral view of a dog skull, jaw closed (from Dog anatomy)
Image 7Australian Cattle Dog puppy (from Puppy)
Image 8A mongrel puppy (from Puppy)
Image 9Frontal view of a dog skull (from Dog anatomy)
Image 10Lateral view of a dog skeleton (from Dog anatomy)
Image 11West Highland White Terrier puppies (from Puppy)
Image 12Sled dog types, sketched in 1833 (from Domestication of the dog)
Image 13"Five different types of dogs", c. 1547. (from Dog breed)
Image 14St. Bernard puppy (from Puppy)
Image 15Two Shih Tzu puppies (from Puppy)
Image 16Bison surrounded by grey wolf pack (from Domestication of the dog)
Image 17Cavapoo puppy (from Puppy)
Image 18Map depicting possible phylogeographic origins of dingoes, New Guinea singing dogs, and Island Southeast Asian and Oceanian dogs, based on recent genetic evidence (Fillios & Taçon, 2016) (from Domestication of the dog)
Image 19Watercolor 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 20Chihuahua mix and purebred Great Dane (from Dog breed)
Image 21A cavapoo and maltipoo running back while playing fetch (from Dog behavior)
Image 22Jack Russell Terrier puppy (from Puppy)
Image 23The nose of a dog (from Dog anatomy)
Image 24Golden Retriever puppy (from Puppy)
Image 25Reduction in size under selective breeding – grey wolf and chihuahua skulls (from Domestication of the dog)
Image 26Puggle puppy (from Puppy)
Image 27Cave wolf skull, Natural History Museum, Berlin (from Domestication of the dog)
Image 28The 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 29Basenji puppy (from Puppy)
Image 30Tesem, an ancient Egyptian sight-hound (from Dog breed)
Image 31A little mongrel puppy on the shore, on Halong Bay (from Puppy)
Image 32Montage showing the morphological variation of the dog. (from Dog breed)
Image 33Sled dog types, sketched in 1833 (from Dog breed)
Image 34Montage showing the coat variation of dogs. (from Dog anatomy)
Image 35The 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 36Dog knee (from Dog anatomy)
Image 37Example of a dog making prolonged eye contact with a human (from Domestication of the dog)
Image 38A dog's whiskers (from Dog anatomy)
Image 39An 1897 illustration showing a range of European dog breeds (from Dog breed)
Image 40The dog's retina shows the optic disc and the eye's vasculature. (from Dog anatomy)
Image 41Bloodhound puppy (from Puppy)
Image 42Chihuahua puppy (from Puppy)
Image 43Diagram of a wolf skull with key features labelled (from Domestication of the dog)
Image 44President Lyndon B. Johnson with a basket of puppies in 1966 (from Puppy)
Image 45A 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 46Schematic 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 47A dog's teeth (from Dog anatomy)
Image 48External 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)
Image 49Newborn Welsh Springer Spaniels (from Puppy)
Image 50Sled dogs, 1833 (from Dog type)
Image 51The dog diverged from a now-extinct population of wolves 27,000–40,000 years ago, before or during the Last Glacial Maximum, when much of the mammoth steppe was cold and dry. (from Domestication of the dog)
Image 52The 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 53A labradoodle puppy and a Golden Retriever puppy playing together (from Puppy)
Image 54Skeleton 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 55German Spitz puppy (from Puppy)
Image 56A wolf mandible diagram showing the names and positions of the teeth (from Dog anatomy)
Image 57Lateral view of a dog skull, jaw opened (from Dog anatomy)
Image 58Mandible of the oldest recognised dog discovered in Bonn-Oberkassel, Germany, and dated 14,200 years old (from Domestication of the dog)
Image 59Basset Hound (from Puppy)
Image 60An extinct Turnspit dog, 1800 (from Dog type)
Image 61Ancient Hawaiian petroglyphic depiction of an ʻīlio (Hawaiian Poi Dog) (from Domestication of the dog)

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

... that the Key Underwood Coon Dog Memorial Graveyard is the only U.S. cemetery reserved exclusively for coon dog burials?
... that Sput played with Puppy and Dogg?
... that Ethan Loch, a blind pianist, was inspired by Rowlf the Dog?
... that ancient humans cared for a 14,000-year-old puppy?
... that the collapse of Cloghan Castle in County Cork, Ireland, was said to have been caused by the barking of a ghostly black dog?
... that Norwegian footballer Tuva Hansen and her dog have received millions of views on several TikTok videos?

More did you know... - show different entries

...that Tillamook Cheddar (pictured), a Jack Russell Terrier from Brooklyn, New York, is the world's most successful and widely shown animal artist?
...that grape and raisin toxicity is a potential cause of acute renal failure in dogs?
...that Able Seaman Just Nuisance is the only dog to have been officially enlisted in the Royal Navy?
...that the Moscow Water Dog, developed as a water rescue dog, preferred to bite drowning people instead of saving them?

...that American president Lyndon Johnson owned two Beagles named Him and Her?
...that the domestic dog's health is possibly one of the best-studied areas in veterinary medicine?
...that the word "terrier" comes from the Latin terra, meaning "earth"?
...that Moose, a Jack Russell Terrier who played Eddie on the popular sitcom Frasier, was given away by his original owner because he was too active for them?

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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, Barrocal Algarvio, 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, Saint Miguel Cattle 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, Villano de las Encartaciones, Villanuco de Las Encartaciones, White Shepherd, White Swiss Shepherd Dog, Xiasi Dog More stubs...
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