Add Yahoo as a preferred source to see more of our stories on Google. Large oak tree in front of nice neighborhood Oak trees have been around for more than 50 million years, with individual trees ...

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images There’s a reason it’s called the Mighty Oak: Oak trees are stately trees that can live for hundreds (yes, hundreds!) ...

There are 10 species of oak listed in John Thomas Howell’s “Marin Flora.” If you are trying to identify oaks you have to be a keen observer. Does the tree lose its leaves in the fall (deciduous) or ...

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.