From the towering redwoods of the Pacific Northwest to the dense Amazonian rainforests, forests provide shelter and nourishment for over 80 percent of the world’s terrestrial biodiversity. A single mature oak tree can host hundreds of distinct species, including insects, birds, mammals, and fungi, forming a tightly interwoven community. These living structures adapt dynamically to changing seasons, shedding leaves to conserve water in winter or sprouting vast green canopies to capture summer sunlight.