Have you ever taken a close-up look at an oak acorn? Usually we use the shape of the leaves to determine which oak we’re looking at. Sometimes it helps us to know whether the oak is evergreen or ...

Oak trees have been around for more than 50 million years, with individual trees easily living 1,000 years. One of the oldest oak trees in the U.S. is believed to be at least 2,624 years old. The ...