Witness the magical natural spectacle of glow-worms illuminating evening lanes, hedges and gardens.
The glow-worm’s famous light show is produced by the chemical luciferin (from the Latin ‘lucifer’, meaning ‘light-bearer’) as it reacts with oxygen in the air. It’s an incredibly efficient process: virtually all the energy is transferred into light, compared to an old-fashioned phosphorescent bulb, which wastes most energy as heat. It is the adult female’s bright beacon that has earned the glow-worm its name, but males can glow faintly, too. The insect lights up at all stages of its life-cycle, in fact – probably as a warning to would-be predators. Even glow-worm eggs give off a faint glimmer.