Is it possible to have it all—to maintain healthy populations of wildlife as they exist in Greater Yellowstone and nowhere else in the facing of booming development on private land and rising numbers of outdoor recreationists moving through public lands? Scientists argue it's not, that choices have to be made and that the most important involves humans deciding whether they are willing to modify or limit their behavior in order to protect habitat wildlife needs. Graphic created by Gus O'Keefe/Mountain Journal. Most images public domain. Photo of mansion via Flickr user Paul Saberman; and clearcut photo via Flickr user Sam Beebe