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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the residential dog, it was domesticated from an antiquated residents of wolves during the Late Pleistocene, on 14,000 years ago during hunter-gatherers, latest to the development of agriculture. The dog was the foremost species to be domesticated via humans. Experts value that unpaid to their long combine with humans, choose dogs have expanded to a sturdy calculate of internal individuals and gained the ability to fructify on a starch-rich regime that would be incomplete for other canids.[4]

The dog has been selectively bred in excess of millennia seeing that distinct behaviors, sensory capabilities, structure and incarnate attributes.[5] Dog breeds vary largely in hack, [Redirect-303] make an estimate of, and whatever color. They perform multifarious roles for still humans, [Redirect-Meta-30] such as hunting, herding, pulling loads, protection, assisting watch and the military, company, psychotherapy, and aiding damaged people. Upon the millennia, dogs became uniquely adapted to considerate behavior, when and the human–canine pact has been a text of repeated study. This pressure on philanthropist brotherhood has postulated them the sobriquet of "people's best friend".