When we ski in Colorado and I admire the beauty of the white Aspen trees that fan across the mountains, I remember this fascinating fact.  The Quaking Aspen Tree is the largest living organism on earth. Each individual tree is connected to the next by the root system underground, and each tree shares the same DNA.  That fact just grounds me to the natural beauty of this landscape. The largest organism is an Aspen colony called Pando  located in Utah.