So imagine my joy when I discovered this:
Features of this stellar puzzle:
1. Theme: FIBONACCI SERIES across the middle.
2. Theme-related answers: All the long acrosses (ARTICHOKE, NAUTILUS, INNER EAR, SUNFLOWER) are natural things that display a Golden Spiral based on the golden ratio and Fibonacci series
3. Circled letters: Starting in the lower left corner, the circled letters spell out the words GOLDEN RATIO
4. Golden Spiral: If you draw a curve through the circled letters, it produces a golden spiral. (Yes the proportions are correct!)
5. General Math-Nerd Awesomeness!!