Humans can't take over every inch on this earth, though...for then...where would the other animals live? A lot of canada is wilderness, for example, and as the human population grows we expand further and further into the remaining wild places. Cutting down the forests to make more places for people. I guess I was thinking of it that way...people seem to think there's countless miles and miles of empty space on earth.

Yet we use up our resources so fast, and more and more houses and cities are made each day, to make room for all the new people that come into the world. If we continue to stretch our socities onto what free land remains, then sooner or later we may only have the national parks left as our wild places...if even they're safe.