Patterns in Nature...I found this to be an easy topic to find subject matter for, but extremely difficult to effectively photograph. I see many other entrants do not have such a problem... Anyway, here's mine:
I am always impressed with nature and it's ability to survive no matter what. The tree is a perfect example, growing within a rock formation with very little soil. Imagine if you had to hold on to the side of that formation while it is snowing, raining and most likely windy.
Anyway, here's mine: