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The Dogs Portal

The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the domestic dog, it is derived from extinct gray wolves, and 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 mustard colour of the Dandie can be any shade including and between reddish brown and fawn.

A Dandie Dinmont Terrier is a small Scottish dog breed in the terrier family. The breed has a very long body, short legs, and a distinctive topknot of hair on the head. They are friendly but tough, and are suitable for interaction with older children. There are breed-specific health concerns: they can be affected by spinal problems due to their elongated body, and the breed is affected by canine cancer at a higher than average rate.

The breed is named after a fictional character in Sir Walter Scott's novel, Guy Mannering. This character, Dandie Dinmont, is thought to be partly based on James Davidson, who is credited as the originator of the modern breed. Davidson's dogs descended from earlier terrier-owning families, including the Allans of Holystone, Northumberland. (Full article...)

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Credit: Herwig Kavallar

The Labrador Retriever ("Labrador" or "Lab" for short), is a retriever, and is the most popular breed of dog (by registered ownership) in the United States, Canada, and the United Kingdom. The breed is friendly, intelligent, energetic and good natured, making them excellent companions and working dogs. Labrador Retrievers are known to be one of the fastest-learning breeds of dog and respond well to praise and positive attention. The steady temperament of Labs and their ability to learn quickly make them an ideal breed for assistance dogs as well as search and rescue, detection, and therapy work.

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Pedigree Dogs Exposed is a BBC One investigative documentary, produced by Jemima Harrison, which looks into health and welfare issues facing pedigree dogs in the United Kingdom. It was originally broadcast on 19 August 2008.

The Kennel Club (KC), the governing body of pedigree dogs in the UK which runs the prestigious dog breed show Crufts, was criticised for allowing breed standards, judging standards, and breeding practices to compromise the health of pedigree dogs. (Full article...)

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

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

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

... that Palmire Dumont, a pioneer of LGBT nightlife in "Gay Paree", was among the first members of the French Bulldog-Owners Club and met other bulldog owners in her lesbian bar?
... that Calvin Harris's 2022 album Funk Wav Bounces Vol. 2 features nearly 20 collaborators, including Justin Timberlake, Snoop Dogg, and Busta Rhymes?
... that Open Philanthropy has made grants to causes ranging from recession prevention to cancer vaccines for dogs?
... that Aox Inc., a maker of computer expansion cards, was named after the founders' dog?
... that Pyrenean Mountain Dogs were urgently introduced onto French farms in the 1990s to protect flocks from wolves that had arrived from Italy?
... that a Hot Dog Bean screenprint from Andy Warhol's Campbell's Soup Cans II sold for $258,046 in 2013?

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?