For the source of any characteristic so widespread and uniform as this adaptation to environment we must go back to the very beginning of the human race.
Ellsworth HuntingtonNevertheless most of the evergreen forests of the north must always remain the home of wild animals and trappers, a backward region in which it is easy for a great fur company to maintain a practical monopoly.
Ellsworth HuntingtonMan could not stay there forever. He was bound to spread to new regions, partly because of his innate migratory tendency and partly because of Nature's stern urgency.
Ellsworth Huntington