On warm summer nights, fireflies perform a silent, luminous ballet. Each species has its own unique rhythm of flashes — a secret code of light used to find mates in the dark. Some flash rapidly, others emit a slow, lingering glow. This bioluminescence is incredibly efficient, producing almost zero heat. In a world full of loud noises and bright screens, fireflies remind us that sometimes, a gentle, quiet light is all it takes to be heard.