catch to eat for a source of protein. after you catch something like a squirrel, you will have to learn how to clean a squirrel the proper way. if it is done right, then cooking will be easy and you will have a nice meal.
of course, it is impossible to prepare for every single scenario; however, it is good to find out about as many of them as you can. this is information that may come in useful when you need it most. 