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...)
Belgian Shepherd varieties: Groenendael (1), Tervuren (2), Malinois (3) and Laekenois (4)
The Belgian Shepherd (Dutch: Belgische Herder), also known as the Belgian Sheepdog (Dutch: Belgische Herdershond) or the Chien de Berger Belge, is a Belgian breed of herding dog of medium size. It is bred in four distinct varieties based on coat type and colour: the long-haired black Groenendael; the rough-haired fawn Laekenois; the short-haired fawn Malinois, and the long-haired fawn Tervuren. The American Kennel Club considers the four varieties to be separate breeds.
The breed descends from a common type of shepherd dog found throughout Western Europe that includes such modern breeds as the Bouvier des Ardennes, Dutch Shepherd and German Shepherd, and was a common sight in the service of Belgian shepherds for centuries. At the end of the nineteenth century a breed club was formed and attempts were made to standardise the breed. (Full article...)
Old Jock (1859–1871), was a Fox Terrier famous during the late 19th and early 20th centuries. A mostly white dog, he ran briefly with a hunting kennel before becoming a show dog, most notably with a victory at the show which popularised the Fox Terrier. His main show rivalry was with a dog named Tartar, and along with a dog named Trap, the three were popular sires of the Fox Terrier breed. He was also involved in the early formation of the Jack Russell Terrier and the Dandie Dinmont Terrier breeds. (Full article...)
Image 19The 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 26Schematic 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 48Lateral view of a dog skeleton (from Dog anatomy)
Image 49Montage showing the morphological variation of the dog. (from Dog breed)
Image 50A 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 51External 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)
... that according to legend, dogs who travelled through a passage between Piper's Hole in Tresco and Piper's Hole in St Mary's emerged without most of their fur?
... that in an 1876 United States centennial publication, T. D. Bancroft was the first person to write about Abraham Lincoln's relationship with his dog Fido?
...that Mancs the Hungarian rescue dog is commemorated by a statue (pictured) in his hometown Miskolc?
...that the sting of the rainforest shrub Dendrocnide moroides can cause severe and prolonged pain and has been reported to kill dogs, horses and humans?
