Human: How can I determine the age of a tree? Assistant: 
To determine the age of a tree, you will need to look at the rings in its trunk. You can do this by cutting into the tree and counting the number of growth rings. This is done by measuring the width of each ring, which is typically wider near the outside of the tree and narrower towards the center. The average number of rings per year can then be used to estimate the age of the tree.