The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the domestic dog, it is derived from the extinctPleistocene wolf; 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 American Cocker Spaniel is a breed of sporting dog. It is a spanieltype dog that is closely related to the English Cocker Spaniel; the two breeds diverged during the 20th century due to differing breed standards in the US and the UK. In the United States, the breed is usually called a Cocker Spaniel, while elsewhere in the world, it is called an American Cocker Spaniel to distinguish it from its older English cousin. The word cocker is commonly held to stem from their use to hunt woodcock in England, while spaniel is thought to be derived from the breed's origins in Spain.
The first spaniel in America came across with the Mayflower in 1620, but it was not until 1878 that the first Cocker Spaniel was registered with the American Kennel Club (AKC). A national breed club was set up three years later and the dog considered to be the father of the modern breed, Ch. Obo II, was born around this time. By the 1920s the English and American varieties of Cocker had become noticeably different and in 1946 the AKC recognized the English type as a separate breed. It was not until 1970 that The Kennel Club in the UK recognized the American Cocker Spaniel as being separate from the English type. The American Cocker was the most popular breed in the United States during the 1940s and 1950s and again during the 1980s, reigning for a total of 18 years. They have also won the best in show title at the Westminster Kennel Club Dog Show on four occasions, the best in show title at Crufts in 2017, and have been linked to the President of the United States on several occasions, with owners including Richard Nixon and Harry S. Truman. In 2021, the cocker spaniel ranked 29th in registrations with the American Kennel Club. (Full article...)
A Border Collie correctly maneouvring through weave poles in dog agility. Border Collies are an extremely intelligent breed with an instinctive desire to work. They are also extremely energetic and require a lot of attention, but are very responsive to training. They are better off in a household that can provide them with plenty of exercise and a job to do.
Dog aggression expressed by dogs is considered to be normal behaviour and various types of aggression are influenced by a dog's environment and genetic predisposition. Dogs commonly display possessive aggression when defending resources or themselves.
Canine aggression may be influenced by a dog's age, sex, health and reproductive status. Canine aggression is one of the most serious behavior problems in animal behavioral medical science. Aggression in canines is particularly important because a dog's sharp teeth can result in serious injuries, or even fatalities in the young or frail. (Full article...)
Image 30A 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 38The 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 39Schematic 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 40Cart dogs, c. 1900; different in appearance but doing the same work (from Dog type)
... that Miller's Anatomy of the Dog, a textbook dedicated to canines, was found by a specialist feline publication to be bereft of information about cats?
... that after U.S. Navy pilot Royce Williams engaged in a solo dogfight with seven Soviet MiG-15s during the Korean War, he was ordered never to tell anyone about it?
...that the Caribou Inuit people are defined by their fur clothing, use of sled dogs and their snowhouses?
...that a legend says that when Philip de Braose irreverently spent the night in a church dedicated to Saint Afan, he was struck blind the next morning and his hunting dogs went mad?
...that the Koitsenko were the honorary elite of the Kiowadog soldiers, who tribal lore says called themselves that because they had dreams or visions of dogs?
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