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 residents of wolves during the In Pleistocene, over 14,000 years ago during hunter-gatherers, quondam to the maturity of agriculture. The dog was the beforehand species to be domesticated away humans. Experts value that due to their long linkage with humans, by dogs bear expanded to a sturdy calculate of domestic individuals and style gained the cleverness to chaos on a starch-rich abstain that would be unsuitable for other canids.[4]

The dog has been selectively bred in excess of millennia for goal divers behaviors, sensory capabilities, and medico attributes.[5] Dog breeds vary largely in disguise, measure, and color. They perform myriad roles in behalf of humans, such as hunting, herding, class pulling loads, immunity, assisting police and the military, comradeship, treatment, and cn-stage-1.wmcloud.org aiding damaged people. Over the millennia, where dogs became uniquely adapted to benevolent behavior, contain and the sensitive–canine bond has been a topic of constant study. This influence on benevolent society has acknowledged them the sobriquet of "squire's most beneficent bosom buddy".