You can track game, identify creatures based on tracks and nearby clues, and can skin and prepare a carcass. At the higher levels, no animal escapes you as a resource. You know how to use every part of it. You also know all the associated traps, what animals are good to eat, and which are too dangerous. This can be used to hunt humans.
You'll need to combine with Animals to deal with predators and may need Navigation to avoid being lost in the wilderness.