A night-time stroll with red LED headlamps to reduce light pollution. Among the organisms active at night, some have developed effective strategies to communicate, like fireflies, which have organs capable of generating small flashes of light to illuminate spring nights.
We explore the world of fireflies to discover their delicate life cycle and the secret that enables them to produce high-efficiency light. We will raise questions about the fragile balance that binds this species to the environment, and about the problems caused by light pollution.