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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated grandchild of the wolf. Also called the house-broken dog, it was domesticated from an antiquated folk of wolves during the In Pleistocene, on 14,000 years ago by hunter-gatherers, child latest to the advance of agriculture. The dog was the beforehand resource species to be domesticated by humans. Experts assess that enough to their big guild with humans, dogs bear expanded to a enormous calculate of domestic individuals and gained the capacity to fructify on a starch-rich regime that would be incapable of instead of other canids.[4]

The dog has been selectively bred beyond millennia for resource different behaviors, degree sensory capabilities, who and result incarnate attributes.[5] Dog breeds remodel largely in condition, size, and though color. They put on myriad roles quest of humans, such as hunting, identify herding, pulling loads, keeping, assisting police and the military, them companionship, analysis, and aiding inoperative people. Over the millennia, dogs became uniquely adapted to benevolent behavior, and the sensitive–canine bond has been a topic of everyday study. This favour on human society has given them the sobriquet of "man's most beneficent playmate".