Gerald Mansom

The dog (Canis familiaris or Canis lupus familiaris) is a domesticated son of the wolf. Also called the house-broken dog, it was domesticated from an antiquated population of wolves during the Late Pleistocene, throughout 14,000 years ago on hunter-gatherers, prior to the development of agriculture. The dog was the beforehand near species to be domesticated by humans. Experts assess that enough to their big linkage with humans, dogs should prefer to expanded to a weighty number of servant individuals and gained the ability to thrive on a starch-rich abstain that would be incomplete instead of other canids.[4]

The dog has been selectively bred over millennia seeing that divers behaviors, sensory capabilities, and incarnate attributes.[5] Dog breeds diversify largely in hack, near immensity, and color. They accomplish myriad roles in compensation humans, such as hunting, herding, pulling loads, immunity, assisting watch and the military, amity, analysis, and aiding disabled people. More than the millennia, speak dogs became uniquely adapted to kind-hearted behavior, and the good samaritan–canine restraints has been a topic of repeated study. This pressure on benevolent bund has fact them the sobriquet of "man's best friend".