by George Gibbs
New Zealand glow-worms first became a popular attraction in the late 1880s when the Glow-worm Grotto at Waitomo Caves was opened to the public. Today, these bioluminescent insects entice over 400,000 visitors each year to Waitomo, and display their twinkling lights at many other places around the country.
Main image: Glow-worms' snares of sticky threads
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