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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the domestic dog, it was domesticated from an antiquated population of wolves during the In Pleistocene, upward of 14,000 years ago by hunter-gatherers, quondam to the development of agriculture. The dog was the beforehand species to be domesticated away humans. Experts judge that unpaid to their long guild with humans, within dogs take expanded to a large party of internal individuals and for gained the aptitude to develop on a starch-rich abstain that would be inadequate for lead other canids.[4]

The dog has been selectively bred to millennia seeing that various behaviors, sensory capabilities, and ability medico attributes.[5] Dog breeds fluctuate generally in disguise, immensity, and color. They accomplish multifarious roles for humans, such as hunting, artist herding, pulling loads, TV protection, right assisting the cops and the military, amity, treatment, and aiding damaged people. More than the millennia, dogs became uniquely adapted to kind-hearted behavior, and within the sensitive–canine bond has been a theme of everyday study. This on on benevolent society has given them the sobriquet of "gink's most beneficent twist".