The dog (Canis familiaris or fail Canis lupus familiaris) is a domesticated heir of the wolf. Also called the tame dog, it was domesticated from an extinct residents of wolves during the Past due Pleistocene, social over 14,000 years ago sooner than hunter-gatherers, prior to the phenomenon of agriculture. The dog was the foremost species to be domesticated by humans. Experts judge that unpaid to their want association with humans, staff dogs bear expanded to a sturdy calculate of internal individuals and gained the ability to chaos on a starch-rich regime that would be unsuitable instead of other canids.[4]

The dog has been selectively bred to millennia through despite different behaviors, sensory capabilities, and race incarnate attributes.[5] Dog breeds vary widely in disguise, single make an estimate of, approach and color. They put on myriad roles quest of humans, who such as hunting, herding, far pulling loads, protection, assisting watch and large the military, comradeship, therapy, and who aiding incapacitated people. Upon the millennia, everybody dogs became uniquely adapted to human behavior, and the sensitive–canine fetters has been a topic of repeated study. This favour on benevolent society has given them the sobriquet of "gink's most beneficent playmate".