My travels in search of light on the "Animals at Home" have taken me up and down the Rocky Mountains for nearly thirty years. In the canyons from British Columbia to Mexico, I have lighted my campfire, far beyond the bounds of law and order, at times, and yet I have found no place more rewarding than the Yellowstone Park, the great mountain haven of wild life.<br><br>Whenever travellers penetrate into remote regions where human hunters are unknown, they find the wild things half tame, little afraid of man, and inclined to stare curiously from a distance of a few paces. But very soon they learn that man is their most dangerous enemy, and fly from him as soon as he is seen. It takes a long time and much restraint to win back their confidence.<br><br>In the early days of the West, when game abounded and when fifty yards was the extreme deadly range of the hunters weapons, wild creatures were comparatively tame.