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Glow Worm Caves

Waitomo, New Zealand - April 04, 2009

  • Waitomo is home to the world famous Glow Worm Caves. I spent the day exploring several of these caves, some with underground rivers. The Glow Worms themselves are not actually worms but a Fungal Knat larva. The larva spins a nest out of silk on the ceiling of the cave and then hangs down as many as 70 threads of silk (called snares) from around the nest, each up to 30 or 40 cm long and holding droplets of mucus.The larva glows to attract prey into its threads, perhaps luring them into believing they are outdoors, for the roof of a cave covered with larva can look remarkably like a starry sky at night.
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