We've all heard about counting the rings inside a tree trunk to discover its age. But there are other ways to determine a tree's age without chopping it down.

Q: This fall, I had three somewhat decrepit ash trees cut down. A friend with a chainsaw cut a cross section so I could count the rings. How far out do the countable rings go? Do I count the rings in ...

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 ...

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 ...

If you want to learn a tree’s age, you can count their rings. When it comes to humans, scientists have yet to find any ...