'The forest ecosystem is held in a delicate balance. Every being has its niche and its function, which contribute to the well-being of all. Nature is often described like that, or something along those lines; however, that is, unfortunately, false. For out there under the trees the law of the jungle rules. Every species wants to survive, and each takes from the others what it needs. All are basically ruthless, and the only reason that everything doesn't collapse is because there are safeguards against those who demand more than their due. And one final limitation is an organism's own genetics: an organism that is too greedy and takes too much much without giving anything in return destroys what it needs for life and dies out.'
Peter Wohlleben, The Hidden Life of Trees: What They Feel, How They Communicate:Discoveries from a Secret World, p.113.