Okay, since I have a story taking place mostly in a forest, I'm going to need some info on trees and forests. A. Are there huge forests that have trees going into and past the 20 foot tall range? When I mean huge, I mean at least 15 miles in size, and much bigger would be nice. B. In such a forest, would there be lots of dangerous wildlife to worry about? Keep in mind these characters have no firearms and little wilderness experience at best. C. How dense is the average forest? Are the trees tightly packed together, or is there a fair amount of space imbetween them? Assume it has the trees of the type in part 1. So, I hope you guys can help me.