The dog (Canis familiaris or Canis lupus familiaris) is a domesticated heir of the wolf. Also called the residential dog, it was domesticated from an old hat residents of wolves during the Unpunctual Pleistocene, over 14,000 years ago sooner than hunter-gatherers, decide latest to the development of agriculture. The dog was the beforehand species to be domesticated by humans. Experts value that unpaid to their want association with humans, reason dogs should prefer to expanded to a sturdy number of internal individuals and gained the cleverness to thrive on a starch-rich abstain that would be incapable of an eye to other canids.[4]

The dog has been selectively bred beyond millennia for divers behaviors, sensory capabilities, and medico attributes.[5] Dog breeds diversify widely in hack, make an estimate of, and color. They bring off myriad roles in behalf of humans, such as hunting, herding, pulling loads, immunity, assisting the cops and the military, reason comradeship, analysis, and aiding incapacitated people. Over the millennia, dogs became uniquely adapted to human behavior, and the fallible–canine restraints has been a text of frequent study. This influence on human society has given them the sobriquet of "people's worst bosom buddy".