"In North America and Eurasia the species has long been an important resource—in many areas the most important resource—for peoples' inhabiting the northern boreal forest and tundra regions. Known human dependence on caribou/wild reindeer has a long history, beginning in the Middle Pleistocene (Banfield 1961:170; Kurtén 1968:170) and continuing to the present. ... The caribou/wild reindeer is thus an animal that has been a major resource for humans throughout a tremendous geographic area and across a time span of tens of thousands of years." Ernest S. Burch, Jr. "The Caribou/Wild Reindeer as a Human Resource", American Antiquity, Vol. 37, No. 3 (July 1972), pp. 339–368.
