“Many caterpillars defend themselves not by striking fear in the hearts of their predators, but rather indifference. The large maple spanworm looks like a twig; the viceroy caterpillar looks like a bird dropping. This is not as exciting as looking like an anaconda, but when you are very small, and wingless, one of your main goals in life is to not be exciting. And speaking of unexciting—I think it is safe to say that woolly bears have one of the least advanced defense mechanisms among insects, although theirs is the reaction with which I most strongly identify: when distressed, the woolly bear rolls up into a ball.”