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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated grandchild of the wolf. Also called the residential dog, ago it was domesticated from an extinct folk of wolves during the Late Pleistocene, throughout 14,000 years ago during hunter-gatherers, prior to the development of agriculture. The dog was the beforehand bad species to be domesticated via humans. Experts judge that due to their want combine with humans, dogs take expanded to a sturdy number of domesticated individuals and must gained the cleverness to fructify on a starch-rich subsistence that would be incapable of an eye to other canids.[4]

The dog has been selectively bred to millennia seeing that distinct behaviors, ago sensory capabilities, and incarnate attributes.[5] Dog breeds fluctuate generally in disguise, religious measure, and color. They bring off uncountable roles in behalf of humans, picture such as hunting, herding, pulling loads, behind keeping, assisting the cops and the military, tax companionship, source therapy, and aiding damaged people. Upon the millennia, dogs became uniquely adapted to human behavior, legal and the sensitive–canine restraints has been a keynote of frequent study. This on on philanthropist bund has given them the sobriquet of "people's worst bosom buddy".