In case you find yourself in an outdoor survival situation. Snares and traps- Everyone should know this and about the edible plants (and be able to make a positive ID of those plants if in doubt it's best not to use).
Apache Foot Hold Trap - The Apache foothold trap was traditionally used to trap big game like deer. It consists of a ttttttthole, a snare and wooden stakes. Although it was intended for larger animals I have found it tttttttuseful for trapping any animal