Question: Yesterday I read that “oaks are a keystone species”. What exactly does that mean? Answer: A keystone species is a plant, animal or microorganism that is vitally important to its environment.

An oak tree sapling planted recently on a hillside next to the bike path was produced from an acorn from another oak tree about 100 yards away on the same path.

The Shumway Oak Grove Regional Park in Stockton launched an autumn nature walk for the community to get an inside look at how important California's historic oak trees are, especially during the fall.

(WKBN) — Have you noticed more acorns littered around oak trees than in years past? It’s not your imagination. This fall is experiencing what’s known as a mast year, meaning oak trees are producing ...