The world's oldest trees were growing when the Great Pyramid of Giza was being built and were already thousands of years old when Julius Caesar came to power. To determine a tree's age, scientists ...

There are a couple of things to consider before scientists survey trees. First, they must find a site where humans haven’t affected the area with logging or other research. Then they pick a group of ...

If you have a tree in your yard, you may be pretty intrigued to find out how old it is. Knowing how old your tree is helps you understand the ecological history of the area and allows you to ...