The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the 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. Experts estimate that 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 have an inferior visual acuity, a superior sense of smell, and a relatively large olfactory cortex. They 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 became 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...)
The Staffordshire Bull Terrier, also called the Staffy or Stafford, is a purebred dog of small to medium size in the terrier group that originated in the northern parts of Birmingham and in the Black Country of Staffordshire, for which it is named. They descended from 19th-century bull terriers that were developed by crossing bulldogs with various terriers to create a generic type of dog generally known as bull and terriers. Staffords share the same ancestry with the modern Bull Terrier, although the two breeds developed along independent lines, and do not resemble each other. Modern Staffords more closely resemble the old type of bull terrier, and were first recognised as a purebred dog breed by The Kennel Club of Great Britain in 1935.
Within the broad sweep of dog history, the story behind the modern Stafford is rather brief and somewhat confusing because of the multiple aliases attached to these dogs in centuries past, such as the "Patched Fighting Terrier", "Staffordshire Pit-dog", "Brindle Bull", and "Bull-and-Terrier". Similar crosses also had aliases such as half-and-halves and half-breds. Blood sports such as bull-baiting and bear-baiting were outlawed with the passing of the Cruelty to Animals Act 1835 by Parliament, making it illegal to bait animals but promoting the matching of dogs against each other. Dog breeders migrated away from the heavier bulldogs, and introduced terrier blood into their crosses for gameness and agility. These bull and terrier crosses produced the ancestral breeding stock that, over the course of decades, evolved into the modern conformation show dogs we know today as the Staffordshire Bull Terrier and the Bull Terrier. It was shortly before the American Civil War that immigrants from Great Britain brought their bull and terrier crossbreeds into the U.S. They became the ancestral progenitors of the American Staffordshire Terrier (AmStaff), Miniature Bull Terrier, Boston Terrier, and American Pit Bull Terrier. (Full article...)
A yellow Labrador Retriever correctly negotiating weave poles at a dog agility competition. Similar to a slalom, weave poles are a series of upright poles, each about 3 feet (1 m) tall and spaced about 20 inches (50 cm) apart, through which the dog weaves. It is one of the most difficult obstacles for a dog to master. It varies from 5 to 12 poles at one time. The dog must always enter with the first pole to his left and must not skip poles.
An engraving of Moustache at the Battle of Austerlitz, from 1836
Moustache, sometimes abbreviated to Mous, (September 1799 – 11 March 1812) was a barbet who is reputed to have played a part in the French Revolutionary and Napoleonic Wars. His story is recounted in many publications but may be partly fictionalised. Moustache is said to have been born in Falaise, Normandy, France, in 1799 and to have joined a grenadier regiment at Caen. He followed the regiment through the Italian Campaign of the Revolutionary Wars and is said to have alerted the regiment to a surprise night attack by Austrian forces. He is reported to have been present at the Battle of Marengo, during which he lost an ear, and with a cuirassier regiment at the Battle of Austerlitz.
At Austerlitz Moustache was apparently responsible for the discovery of an Austrian spy, and the recovery of the regiment's standard from the Austrians. As a result of wounds taken at Austerlitz Moustache had a leg amputated and was reportedly rewarded with a medal by MarshalJean Lannes. He is later said to have followed a unit of dragoons to Spain where he fought in several actions of the Peninsular War. Seeing action in the Sierra Morena and later, with a gunboat unit, at the Battle of Badajoz, where he was killed by a cannonball. Moustache was interred beneath a gravestone on the battlefield but his memorial is said to have been smashed and his bones burned after the war. (Full article...)
Image 4The 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 14Schematic 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 17"Five different types of dogs", c. 1547. (from Dog breed)
Image 18An 1897 illustration showing a range of European dog breeds (from Dog breed)
Image 19A wolf mandible diagram showing the names and positions of the teeth (from Dog anatomy)
Image 20A drawing by Konrad Lorenz showing facial expressions of a dog - a communication behavior. X-axis is aggression, y-axis is fear. (from Dog behavior)
...that the stray dogs Bummer and Lazarus(pictured) were so popular with the people of San Francisco in the 1860s that they were given special exemption from the leash laws?
...that Manuel Benito de Castro assumed the Presidency of Cundinamarca, with the condition that he would be allowed to leave Congress at a certain time to feed his dog?
...that the namesake for Hondo Dog Park in Hillsboro, Oregon, won an award for valor just weeks before being killed in the line of duty?
...that most of the dogs seen in the 2007 Thai film, Ma-Mha, were strays rescued from shelters and trained specifically for the film?
...that the Caucasian Shepherd Dog is generally a low activity dog, seemingly lethargic when not working, but extremely agile and convincing when it feels that its family is threatened?
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