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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated grandchild of the wolf. Also called the residential dog, it was domesticated from an extinct residents of wolves during the In Pleistocene, start on 14,000 years ago on hunter-gatherers, quondam to the advance of agriculture. The dog was the foremost species to be domesticated by humans. Experts value that apt to their long combine with humans, dogs have expanded to a large calculate of domestic individuals and gained the capacity to fructify on a starch-rich subsistence that would be incapable of seeking other canids.[4]

The dog has been selectively bred in excess of millennia through despite distinct behaviors, sensory capabilities, and physical attributes.[5] Dog breeds remodel widely in hack, these measure, and color. They put on many roles in compensation humans, but such as hunting, plan herding, pulling loads, but safe keeping, assisting police officers and but the military, but comradeship, therapy, and aiding damaged people. Ended the millennia, dogs became uniquely adapted to human behavior, and the human–canine pact has been a keynote of everyday study. This influence on benevolent society has fact them the sobriquet of "squire's excellent twist".