Think of a tree ... swaths of forest connected underground by a single network of roots, with each trunk genetically identical to the others. The most famous example of a clonal grove is Pando ...

U.S. Forest ... center of the tree may be off to one side or eroded away altogether. Some trees show fire scars from lightning strikes, and there are many dead trees. But this grove of ancient ...

Right outside Detroit a native forest has stood undisturbed for centuries—but now, the 300 year-old oaks are gaining ...

which spread across 40,000 acres of old-growth forest. Many individual trees have been named and have gained celebrity-like ...

To protect this venerable old tree, the U.S. Forest Service refuses to give its location or identity within the Methuselah Grove—as does the scientist who recently discovered an even older ...