The wolf in his struggles with man has become an extremely cautious animal. He is hunted and pursued with deadly ingenuity and persistence. Guns, traps, poison, and dogs are used for his destruction. There is no quarter for him--always a price on his head; and the sum is large. Survivors must be exceptionally wide-awake and wary. The numbers that still survive show that this exacting price of existence has been met. They have not been beaten. Altogether, the wolves now alive probably are much more destructive than their ancestors were, and far more capable of saving themselves from extermination by man. Much of the time wolves hunt in coöperating packs. They run an animal down by following it in relays; sometimes one or more wolves lie in wait at a point of vantage while others drive or force the victim into the ambush. On an island in Alaska a number of wolves in relays chased a deer and at last drove it into the sea. Near the point where it leaped into the water a swimming wolf was in waiting. Three wolves chased a young antelope through my mountain camp. Though they nearly ran over me, I doubt whether either the antelope or the wolves saw me. On they went across the plateau. I hoped that the antelope might escape; but just before he reached the top of a ridge I saw a wolf peering over. The antelope and the wolves disappeared on the other side, where I suppose the drifting clouds and steadfast pines again witnessed a common tragedy of the wild. On another occasion I saw three wolves drive a deer from a cañon and so direct its course that it emerged where the way was covered with a deep snowdrift. As the deer floundered through the soft snow it was pounced upon by a fourth wolf, which was lying in wait at this point. Wolves occasionally capture the young, the stupid, and the injured among deer, sheep, elk, and moose; but the big-game loss from wolf depredations probably is not heavy. These wolf-chased animals have developed a wariness and endurance that usually enable them, except perhaps during heavy snows, to triumph over this enemy. Economically, the food habits of wolves are not entirely bad. In many localities they prey freely upon those ever-damaging pests--mice, rats, rabbits, and prairie dogs. They are also scavengers. The vast herds of buffaloes used to be constantly followed by countless packs of wolves. At that time the gray wolf was commonly known as the buffalo wolf, and he is still often spoken of by that name. The wolves were watchful to pounce upon any stray, weak, or injured animal.