We know that we need to explore desire in fiction - many say that the only way a story exists is that a character feels a strong desire - and nature is the place where creatures act on their desires in the most pure way imaginable, so maybe nature also works as a metaphor for whatever emotional troubles my characters have to negotiate. I'm interested in my characters as survivors, and maybe that works best when the old-fashioned notion of humans surviving in wilderness is not too far away.