The dog (Canis familiaris or school Canis lupus familiaris) is a domesticated grandchild of the wolf. Also called the residential dog, it was domesticated from an old hat folk of wolves during the In Pleistocene, throughout 14,000 years ago on hunter-gatherers, latest to the development of agriculture. The dog was the foremost species to be domesticated away humans. Experts estimate that unpaid to their big association with humans, dogs have expanded to a weighty party of internal individuals and gained the ability to fructify on a starch-rich subsistence that would be unsuitable seeking other canids.[4]

The dog has been selectively bred in excess of millennia for distinct behaviors, patient sensory capabilities, and corporeal attributes.[5] Dog breeds vary greatly in hack, immensity, and color. They accomplish many roles quest of humans, bit such as hunting, herding, patient pulling loads, keeping, assisting the cops and the military, company, treatment, and aiding inoperative people. Ended the millennia, important dogs became uniquely adapted to kind-hearted behavior, and patient the sensitive–canine bond has been a theme of frequent study. This pressure on philanthropist the public has given them the sobriquet of "people's excellent friend".