Despite their name, glow-worms aren't worms at all: they're beetles. They use their bioluminescent bodies to communicate with other beetles, in an attempt to attract a mate. The ocean is well known ...

But one of the most arresting creatures is Arachnocampa luminosa, or the New Zealand glow worm, which emits a blue-green ...

The reason? Thousands of glow worms have taken over the Australian tunnel, providing a unique, luminescent guide for walkers.

From fireflies to comb jellies, here is a list of eight animals that naturally glow in the dark. Fireflies use flashing light to attract mates, but begin emitting light even as larvae. The glowworm ...

One of the most ambitious and ultimately magical shoots of the entire series was trying to capture the mass spectacle of glow worms in a dark, wet forest. ...although their bioluminescence is easy ...