Domestication signifies a modification of the original human-animal relationship: from predation one passes to a symbiotic relationship. With this, humans initiate a process of artificial selection which with time leads to genetic changes in the animals involved. Such genetic changes generally produce structural modifications which facilitate the work of archaeologists by allowing them to differentiate between the bones of wild and domestic animals (see Bökönyi 1969 for analysis). This, however, is not the case with the camelids, as will be shown later.