In the summer of 2014, I spent a day enjoying Maryland’s Calvert Cliffs State Park. Famous for the numerous fossils that emerge from the eroding cliff face, the beach at the end of the trail hosted many visitors, including several little kids with pails sifting through the sand in hope of finding a Megalodon tooth. What really captivated me that day was not the fossil hunt, but the magnificent, compound eyes of the dragonflies. They flew everywhere, and were vibrantly red, blue, green, yellow and orange, like glistening pieces of a rainbow on wings.