Scientists once thought they understood how domestication worked. Now, they’re not so sure

Though dogs are so close genetically close to wolves that many taxonomists consider them to be a subspecies, most people wouldn’t let a wolf lick their hand as readily as a Shih Tzu. When animals are domesticated, as the dog was, their traits change; an artificial selection occurs over many generations, which, in the case of the dog, probably happened through unconscious selection bias among ancient humans and their canid hangers-on....

Originally posted on salon.com