"This stunning image by amateur photographer Tsuneaki Hiramatsu captures the flight paths of thousands of fireflies in Japan. Heading into the forest at night during their breeding season, Hiramatsu was able to photograph their courting rituals, during which the males and females would vie for attention using special blinking codes."




http://www.smithsonianmag.com/arts-culture/beautiful-flight-paths-fireflies-180949432/