Adventures for All

A Basic Bit of Glow Worm Biology

The cave is aglow with light-bummed maggots.

The cave is aglow with light-bummed maggots.

This is pretty funny … someone came to my blog today to find out whether the poop of glow worms glows.

The answer is no – that’s because glow worms don’t poop. The glow that they make is their form of excretion. But rather than just launching solid or liquid waste, it converts the leftover matter into light that’s used to attract its prey. The glow worms dangle silky threads from their spots in their home caves. Insects see this and thinks they’re seeing stars, and fly toward the light. They get caught in the threads. Then the glow worms  eat them, absorb the nutrients, turn the excess matter into light and begin the cycle again.

Really, that’s pretty fabulous. It takes stuff in, but leaves nothing but heat and light behind. That’s an incredible bit of evolution. And certainly, it has to be the envy of every mechanical engineer.

If you’re interested in seeing glow worms, there are a number of places in the world to do so. Of course, I’m pretty partial to Waitomo, New Zealand. Here are a few related posts:

Rappelling into the Dark

7 Hotels in New Zealand

Rap, Raft & Rock

One Response to A Basic Bit of Glow Worm Biology

  1. Taylor says:

    Not sure how I ended up on your site, but glad I did.

    The glow Worm is a pretty cool and environmentally friendly creature. Kills insects, provides no environmental foot print, recycles, no emissions energy conversion…should be an emblem for some sort of green movement.

    Very cool.

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