Trap stakes functioned as trigger elements in deadfall  traps and snares. 
                
                These key elements were important enough to each successful trap  that they were made with special care and of a durable material, so that  successive generations could make use of their power. The trigger held tension  between a heavy weight, poised to fall, and the light support structure that  temporarily held it up. When a bear or other prey was drawn to a bait in the  trap, they would dislodge the trigger and a heavy weight (usually logs and stones)  fell onto them. 
                
                Trap sticks  were made in a traditional form that took advantage of the strength of the bone  material, and each was embellished with an identifying sculpture at the top.  These images may in some examples display clan crest emblems, as well as  depict spirit creatures and the relationship between hunter and prey. 
                
                The imagery  in the top example  is very unusual, with much in  common with the types of transformational images found in amulets. There appear  to be two somewhat overlapping figures defined in the sculpture. The carved  mouth opening includes two upper and two lower fang-like teeth, and a round  bulge behind the mouth looks like an eye. Above the pierced mouth, however, is  a fully sculptured head that may represent a bear. It has a rounded snout,  closed mouth, round eyes and laid back, round ears. What appears to be the  bear’s neck and shoulder is also the back of the head belonging to the large  cut-through mouth. On the rear edge are transverse cuts that define what could  be depictions of ribs or vertebrae. The image suggests a bear emerging from its  own spirit, fulfilling its cycle through the roles of hunter and prey. 
                
                The carvings  are intended to propitiate the animal or bird spirit they represent, so that they will come to the trap  and to offer homage to their lives. This is the same motivation from which  grease bowls come to be carved as seals, the providers of the blubber that made  the oil served within. It honors the creatures that provide human sustenance  and recognizes their sacrifices. In turn, human beings took only what they  needed from the creature world, and helped to maintain their habitats by benign  interference, building their cultures and civilization at the border of land  and sea, taking not that much from either.