:This article discusses the domestic dog. For other members of the dog family, see Canidae.
The dog is a canine omnivorous mammal that has been domesticated for somewhere between 14,000 and 150,000 years. In those millennia, the dog has developed into hundreds of breeds of almost unimaginable variation, for example, with heights ranging from just a few inches (centimeters)—such as the Chihuahua—to nearly three feet (1 meter)—such as the Irish Wolfhound; and colors ranging from white to black with reds, grayThe word gray is also spelled grey see Grey for topics with this spelling. Gray or grey is a color created by mixing white and black in different proportions. Gray (unit) the absorbed dose of radiation named after Louis Harold Gray. Gray, France is a towns, and brownBrown is a color produced by mixing small intensities of red and green, orange and blue, or yellow and purple pigment. Brown exists as a color perception only in the presence of a brighter color contrast. An example of a brown color in the RGB color spaces also occurring, all in a tremendous variation of patterns. The dog is known for its trainability, its sense of fun, and for its ability to fit into human households and social situations. In some countries dogs are most often kept as petThis page is about domestic animals. For several meanings of the acronym PET see PET. A pet or companion animal is a domesticated animal that is kept by humans for companionship or for the beauty of its appearance or utterances, rather than for economic rs, although a wide range of dog sports provides opportunities for dogs to exhibit their natural skills, and working dogA working dog refers to a dog that performs tasks to assist its human companions. Within this general description, however, there are several ways in which the phrase is used. To identify any dog that performs any task on a regular basis to assist people.s of all kinds still fill traditional dog roles such as herding sheep and cattleCattle are domesticated ungulates, a member of the subfamily Bovinae of the family Bovidae. They are raised as livestock for meat (called beef and veal), dairy products ( milk), leather and as draught animals (pulling carts, plows and the like). In some c while moving into new jobs such as drug detection. It has lived with and worked with humans in so many roles that it has earned the sobriquet Man's best friend.
