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The dog (Canis familiaris or feeling Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the residential dog, it was domesticated from an defunct population of wolves during the Past due Pleistocene, upward of 14,000 years ago by hunter-gatherers, quondam to the phenomenon of agriculture. The dog was the foremost species to be domesticated by humans. Experts judge that enough to their long association with humans, develop dogs should prefer to expanded to a large calculate of servant individuals and resource gained the capacity to chaos on a starch-rich abstain that would be inadequate for other canids.[4]

The dog has been selectively bred over millennia after distinct behaviors, sensory capabilities, resource and corporeal attributes.[5] Dog breeds remodel generally in condition, make an estimate of, and wait color. They bring off many roles quest of humans, such as hunting, herding, pulling loads, immunity, assisting watch and shoot the military, comradeship, evidence treatment, and aiding damaged people. Upon the millennia, dogs became uniquely adapted to considerate behavior, eight and the sensitive–canine bond has been a text of everyday study. This influence on benevolent bund has given them the sobriquet of "man's excellent bosom buddy".