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forests are superorganisms with interconnections much like ant colonies.
Peter Wohlleben • The Hidden Life of Trees: What They Feel, How They Communicate—Discoveries from A Secret World (The Mysteries of Nature Book 1)
it extends the reach of the tree’s own roots as the web grows out toward other trees.
Peter Wohlleben • The Hidden Life of Trees: The International Bestseller
It’s the functional equivalent of the topsoil in agriculture; it links both dimensions of the field.