The greatest cunning of the wolverine is manifested in robbing traps, stealing the trapper's food and trap-baits, and at the same time avoiding the traps set for him. He is wonderfully expert in springing steel traps for the bait or prey there is in them, without getting caught himself. He will follow up a trap line for miles, springing all traps and devouring all baits as he goes. Sometimes in sheer wantonness he will throw a trap into a river, and again he will bury a trap in deep snow. Dead martens in traps are savagely torn from them. Those that can not be eaten on the spot are carried off and skilfully cached under two or three feet of snow. Trapper Smith once set a trap for a wolverine, and planted close behind it a young moose skull with some flesh upon it. The wolverine came in the night, started at a point well away from the trap, dug a tunnel through six feet of snow, fetched up well behind the trap,--and triumphantly dragged away the head through his tunnel. From the testimony of W. H. Wright, of Spokane, in his interesting book on "The Grizzly Bear," and for other reasons, I am convinced that the Rocky Mountain silver-tip grizzly is our brightest North American animal, and very keen of nose, eye, ear and brain. Mr. Wright says that "the grizzly bear far excels in cunning any other animal found throughout the Rocky Mountains, and, for that matter, he far excels them all combined." While the last clause is a large order, I will not dispute the opinion of a man of keen intelligence who has lived much among the most important and interesting wild animals of the Rockies. In the Bitter Root Mountains Mr. Wright and his hunting party once set a bear trap for a grizzly, in a pen of logs, well baited with fresh meat. On the second day they found the pen demolished, the bait taken out, and everything that was movable piled on the top of the trap. The trap was again set, this time loosely, under a bed of moss. The grizzly came and joyously ate all the meat that was scattered around the trap, but the moss and the trap were left untouched. And then followed a major operation in bear trapping. A mile away there was a steep slope of smooth rock, bounded at its foot by a creek. On one side was a huge tangle of down timber, on the other side loomed some impassable rocks; and a tiny meadow sloped away at the top. The half-fleshed carcasses of two dead elk were thrown half way down the rock slide, to serve as a bait. On the two sides two bear guns were set, and to their triggers were attached two long silk fish-lines, stretched taut and held parallel to each other, extending across the rocky slope. The idea was that the bear could not by any possibility reach the bait from above or below, without setting off at least one gun, and getting a bullet through his shoulders.