They're tiny, blobby, butt-shaped, and glow in the dark. What the heck are they? Scientists are still figuring them out.

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 ...

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 ...