INSECTS

Glowworms, including wingless larviform female beetles and larvae of true fireflies (Lampyridae) are bioluminescent. A molecule called luciferin is combined with oxygen to create oxyluciferin which results in glowing.

Amazingly, unlike fireflies, glowworms (beetles) cannot control the creation of oxyluciferin, thus glowing constantly.

This constant light can serve as attractions, either for mates or prey, but it also serves as a defense mechanism, warning predators of their unpalatability.

It’s amazing how these creatures have evolved such unique ways to use light!