Intrigue

I watched this interesting looking shadow come floating across a rock as I sat by the water's edge. 

The nearest thing to it that may have been causing the shadow was a straight looking hemlock needle, but it was the wrong shape to cast such a curvy shadow.

So I looked closely at my photo after the fact, and noticed the perturbations and swirls around the edge of the needle as it broke the surface tension - that caused the intriguing shadow - quite amazing!