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.
"Water Spaniel" (most widely accepted image of a Tweed Spaniel)
The Tweed Water Spaniel, or Tweed Spaniel, is a breed of dogextinct since the 19th century. It is best known for being involved in the early development of the modern Curly Coated Retriever and Golden Retriever breeds of dogs. They were described as generally brown, athletic dogs from the area around Berwick-upon-Tweed near the River Tweed and close to the Scottish Borders. A type of water dog, the breed was not well known outside the local area. This breed may have been created by crossing local water dogs with imported St. John's water dog, another breed which is also now extinct. (Full article...)
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.
Dog intelligence or dog cognition is the process in dogs of acquiring information and conceptual skills, and storing them in memory, retrieving, combining and comparing them, and using them in new situations.
Studies have shown that dogs display many behaviors associated with intelligence. They have advanced memory skills, and are able to read and react appropriately to human body language such as gesturing and pointing, and to understand human voice commands. Dogs demonstrate a theory of mind by engaging in deception, and self-awareness by detecting their own smell during the "sniff test," a proposed olfactory equivalent to the mirror test. (Full article...)
The following are images from various dog-related articles on Wikipedia.
Image 1The 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 15A 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 55Schematic 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 56Frontal view of a dog skull (from Dog anatomy)
Image 57Montage showing the morphological variation of the dog. (from Dog breed)
... that after decades of being a central hub for river dredging operations, Stony Island's population was reduced to a caretaker and his two dogs?
... that a flat on London's Cadogan Lane has been described as "one of the happiest turn-on centres there's ever been" due to experiments with LSD done there?
... that the parasitic fly Hippobosca longipennis has been found inside dog corpses from ancient Greece and on an ancient Egyptian mummified dog?
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