While on vacation, my daughter and I strolled on the beach in the cool of the evening. Interrupting her mid-sentence, I tapped her arm and pointed. “Look over there!” What appeared to be sand moving back and forth proved—upon closer inspection—to be a tiny crab scuttling across the beach. Its beige color, tiny size, and quick reflexes provided protection against being seen, much less caught. The small creature wanted to survive, not stand out.