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How does a jellyfish sting?
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A jellyfish is a bell-shaped sea animal with its mouth underneath it. Its body is made of two layers of skin with a jellylike layer in between. Long tentacles hang down from the body. The tentacles have stinging cells, which the jellyfish uses to stun its prey or protect itself from enemies. Humans can sometimes be hurt by these stings. Inside each stinging cell is a coiled thread. When something touches the cell, the thread shoots out, sticking into the prey and injecting venom. In this way, jellyfish can catch large fish.
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Book:
Best Ever Q&A
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Section:
Nature
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Chapter:
Simple Creatures
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