My first blog has to do with this very interesting picture, which I took looking out the window behind my computer. It was about 3:00 am and I just happened to look up from my screen. These little guys are peepers – the small tree frogs with sticky toepads who sing those wonderful choruses after a spring /summer rain. My lamp had apparently attracted some small tasty moths. What struck me was the almost perfect symmetrical arrangement of the frogs at the corners of a square. I was trained in school as a crystallographer, one of those guys who studies symmetry in crystals and minerals. I guess that’s why I always look for symmetry in nature. Perhaps the 4-fold symmetry was the most efficient way to ensure that each frog had an equal share of the morning meal! Since the weather has turned cooler here I don’t see them anymore. I miss watching them.