The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the domestic dog, it was domesticated from an extinct population of Pleistocene wolves over 14,000 years ago. 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.
Relief of Marquesan Dog on the Tiki Makiʻi Tauʻa Pepe, from the meʻae Iʻipona at Puamaʻu Village, Hiva Oa
The Marquesan Dog or Marquesas Islands Dog is an extinct breed of dog from the Marquesas Islands. Similar to other strains of Polynesian dogs, it was introduced to the Marquesas by the ancestors of the Polynesian people during their migrations. Serving as a tribal totems and religious symbols, they were sometimes consumed as meat although less frequently than in other parts of the Pacific because of their scarcity. These native dogs are thought to have become extinct before the arrival of Europeans, who did not record their presence on the islands. Petroglyphic representations of dogs and the archaeological remains of dog bones and burials are the only evidence that the breed ever existed. Modern dog populations on the island are the descendants of foreign breeds later reintroduced in the 19th century as companions for European settlers. (Full article...)
Purebred dogs, such as these Airedale Terriers, may participates in conformation dog shows with its owner or handler. Dog shows (and the related sport of Junior Handling for children and young people) are a popular activity; a single show, the 2006 Crufts dog show alone had 143,000 spectators, with 24,640 purebred dogs entered, representing 178 different breeds from 35 different countries.
Image 38A 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 39Tesem, an ancient Egyptian sight-hound (from Dog breed)
Image 42The 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 60Schematic 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)
... that in 2021, Alabama state representative Steve McMillan sponsored a bill that later became law allowing restaurants to have outdoor dining areas for dogs?
...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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