How to use a yo yo snare trap to catch your own food. Sigma3 survival school shows how to make the snare, how to set it up and how to use it.
The second video shows how it worked and what he caught. This could feed you if you ever needed to catch animals in the wild to survive.
If you are squeamish you may want to skip the second video as it does show what he caught. Good info to know. They have a lot of really good videos.