A gore is a device used similar to a fishhook. It's a straight sharp-pointed piece of wood, bone, metal or whatever with a string tied through a hole located near center. The gore can be placed in a piece of bait so the animal will swallow it. After it's swallowed, the string pulls it cross-ways in the animals throat, and the animal is caught.
Hope that helps.
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"Most men take the straight and narrow. A few take the road less traveled. I chose to cut through the woods." ~Unknown~