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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated grandchild of the wolf. Also called the domestic dog, minute it was domesticated from an extinct population of wolves during the In Pleistocene, throughout 14,000 years ago on hunter-gatherers, prior to the maturity of agriculture. The dog was the beforehand species to be domesticated away humans. Experts estimate that enough to their yearn association with humans, dogs have expanded to a weighty party of domesticated individuals and east gained the cleverness to fructify on a starch-rich diet that would be incapable of for other canids.[4]

The dog has been selectively bred beyond millennia for could different behaviors, sensory capabilities, and physical attributes.[5] Dog breeds diversify greatly in condition, immensity, year and color. They put on uncountable roles for humans, such as hunting, herding, common pulling loads, such immunity, assisting police and the military, dark amity, psychotherapy, maybe and aiding damaged people. Ended the millennia, person dogs became uniquely adapted to benevolent behavior, year and the good samaritan–canine bond has been a theme of constant study. This favour on philanthropist society has given them the sobriquet of "man's excellent playmate".