Cave Glow Worms and Their Hunting Techniques
In Cave Glow Worms and Their Hunting Techniques, narrator Sir David Attenborough highlights the fascinating hunting tactics of cave glow worms. Living in the darkness of caves, these small insects use sticky silk threads, which they produce along with mucus from their mouths, to trap insects. Glow worms emit a faint blue light from their bodies while they wait in a mucus hammock, attracting insects toward the sticky traps. Once an insect becomes ensnared, the glow worm reels in the thread and devours its prey. This video is excerpted from BBC’s Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
Lesson Express
Q: How do glow worms catch their food?
A: Glow worms catch insects using sticky silk threads that hang from the ceilings of caves.
Q: What happens once an insect gets stuck?
A: The glow worm reels in the silk thread and eats the insect.
Q: Why do glow worms live in caves?
A: Caves are dark, which makes the glow worms’ light more effective in attracting insects to their traps.
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