Carvings of a bear, squirrel and owl have helped to save an old oak tree at a park which needed to have some of its branches ...

One thing you’ll want to leave off your landscaping to-do list, at least for a while, is pruning your oak trees. February ...

20 years after the conclusion of the original film trilogy, The Lord of the Rings returned to the zeitgeist with a beautifully shot half-billion-dollar season of television, and the promise of new ...

Blue rings found in the stems of trees and bushes in Norway point to a historic cold period in the late 1800s, but the exact cause of this climatic event remains unclear, scientists say.

POZNAŃ, Poland — In the Arctic’s harsh borderlands, where trees wage ... normal wood turns red. They then measured various characteristics of the cells using microscopes and specialized software. The ...

A blue ring formed in 1902 in a tree in northern Norway. Credit: Image by Pawel Matulewski and Liliana Siekacz. Blue growth rings in woody plant stems indicate years when cells failed to lignify ...

Trees need a certain number of warm days in their growing seasons to grow properly; otherwise, the cell walls of new growth don't lignify properly, creating 'blue rings' that appear when wood samples ...

Taken from a tree in Norway, this stained tree sample shows a blue ring from 1902. (Credit: Pawel Matulewski and Liliana Siekacz) Human skin isn't the only thing that can change color after facing the ...