A melting ice patch in the Rocky Mountains uncovered an ancient forest, and these trees have stories to tell about dynamic ...

Blue growth rings in woody plant stems indicate years when cells failed to lignify properly due to summers that were too cold ...

Now the oldest known tree is another bristlecone pine in the White Mountains of California, named Methuselah. However, you can still find bristlecone pines in Nevada. Here's a look at the oldest ...