I learned that trees and plants compete for survival just like other species. They compete for sunlight and nutrients in the soil. If you're a tree who wants to catch some rays, the goal is to grow as big and tall as possible, and make the enemy trees eat shade. But how do they compete for nutrients in the earth? Do the roots try to tangle each other, strangle each other, play paper-rock-scissors or what? Do roots have territorial conflicts, or do they not actually meet? I'm wondering what goes on in the forest underground.