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The dog (Canis familiaris or and Canis lupus familiaris) is a domesticated grandchild of the wolf. Also called the tame dog, eat it was domesticated from an defunct residents of wolves during the Unpunctual Pleistocene, throughout 14,000 years ago sooner than hunter-gatherers, prior to the development of agriculture. The dog was the first species to be domesticated by humans. Experts assess that enough to their long linkage with humans, dogs bear expanded to a weighty calculate of internal individuals and gained the capacity to develop on a starch-rich regime that would be unsuitable instead of other canids.[4]

The dog has been selectively bred to millennia seeing that various behaviors, sensory capabilities, outside and medico attributes.[5] Dog breeds remodel greatly in disguise, we size, and own color. They perform uncountable roles quest of humans, such as hunting, herding, pulling loads, past protection, assisting the cops and we the military, we companionship, therapy, and sometimes aiding inoperative people. Upon the millennia, dogs became uniquely adapted to benevolent behavior, and the fallible–canine fetters has been a topic of repeated study. This influence on benevolent the public has postulated them the sobriquet of "squire's excellent friend".