Portal:Dogs
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The domestic dog is a mammal in the canine family of the Order Carnivora. Dogs were first domesticated from wolves at about 2000 years B.C. In this time, the dog has developed into hundreds of breeds with a great degree of variation in height and weight, coat color and texture, anatomical details and behavior. Dogs fill a variety of roles in human society and are often trained as working dogs. For dogs that do not have traditional jobs, a wide range of dog sports provide the opportunity to exhibit their natural skills. In many countries the most common, and perhaps most important, role of dogs is as companions. Dogs have lived with and worked with humans in so many roles that their loyalty has earned them the sobriquet "man's best friend."
A police dog is a dog that is trained specifically to assist police and similar law-enforcement personnel with their work. They are also known in the United States as police K9s (a play on words; a homophone for canine).
The term is sometimes used in the common parlance of several countries to refer to any German Shepherd Dog because of the long history of the use of the German Shepherd by the police and military; in some nations German Shepherds are the only dogs used by those forces. Almost all dog breeds that are trained for police work originate from Germanic and Romance countries. In recognition of the valuable role these animals play in police duties and the dangers they face, there have been a number of measures to ensure their protection. These include outfitting dogs with bulletproof vests to protect them from guns and some areas have passed laws that make attacking a police dog a felony. 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.
Dog breeds also can be grouped into similar types such as molossers, spitz types, pit bulls, or Lurchers.
The Black Russian Terrier (or simply BRT) was developed in the former Soviet Union (in what is now Russia), and was originally used as a guard dog and police dog. It is rare outside its native country and is just starting to be recognized elsewhere; for example, it is one of the AKC's most-recently recognized breeds, gaining full status in July of 2004. BRTs are confident, calm, highly intelligent, brave and loyal. It will not hesitate to defend the people that it loves if it thinks they are threatened. The BRT may seem aloof, but needs human companionship and bonds deeply to its family.
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