A single organism, Pando, in Utah's Fishlake National Forest, defies expectations by appearing as a vast forest of quaking aspens. This clonal colony, with genetically identical stems arising from a ...

Though no one may be around to hear when a tree falls in the forest, countless critters take note. Dormant fungi within the tree awaken to feast on it, joined by others that creep up from the soil.

Where there’s a tree, there’s usually a forest. But not always. A biologist describes some of the loneliest trees on planet Earth. When we think about isolation in nature, we usually picture islands ...