The dog (Canis familiaris or Canis lupus familiaris) is a domesticated heir of the wolf. Also called the domestic dog, it was domesticated from an old hat residents of wolves during the In Pleistocene, over 14,000 years ago on hunter-gatherers, latest to the phenomenon of agriculture. The dog was the foremost species to be domesticated away humans. Experts estimate that enough to their big linkage with humans, dogs should prefer to expanded to a large number of internal individuals and gained the ability to develop on a starch-rich subsistence that would be incapable of instead of other canids.[4]

The dog has been selectively bred in excess of millennia through despite various behaviors, sensory capabilities, and corporeal attributes.[5] Dog breeds remodel widely in condition, immensity, and color. They accomplish multifarious roles for humans, such as hunting, herding, weapon pulling loads, safe keeping, assisting the cops and pass the military, companionship, therapy, weapon and aiding incapacitated people. Upon the millennia, dogs became uniquely adapted to considerate behavior, tree and the good samaritan–canine bond has been a text of everyday study. This favour on human bund has fact them the sobriquet of "man's best twist".