Trees are natural fractals, patterns that repeat smaller and smaller copies of themselves. Each tree branch, from the trunk to the tips, is a copy of the one that came before it. Branches split off from the highest tip the same way they do from the trunk, and set of branches splits off at the same angle to each other.

Here is the basic plan for this tree fractal:
• Start at some point and move a certain distance in a certain direction.
• At that point, make a branch. Turn some angle to the right and then repeat the previous step with a shorter distance. (Recursion!)
• Now go back and turn left to make the other branch. (Recursion again.)