| We were guided as we went by millions of fireflies whose flashing marked the banks like landing lights on an airstrip. |
| Existing imaging techniques use natural molecules that fluoresce, such as organic dyes and proteins that are found in jellyfish and fireflies. |
| It was a time when grown-ups made divinity in stifling hot kitchens and kids caught fireflies in Mason jars at dusk. |
| While some locals have ascribed the lights to UFOs, others blamed swarms of fireflies or even glow-worms. |
| Natural sources of chemiluminescence include fireflies, glow-worms and a variety of bacteria and fungi. |
| It was like long snakes zigzaggedly going through a forest full of fireflies showing them direction. |
