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This Sea Slug Steals Stinging Cells To Use As Weapons

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blue dragon · sea slug · glaucus atlanticus · nudibranch · portuguese man o war · stinging cells

The real science

The blue dragon is a tiny sea slug that floats upside down on a swallowed air bubble and eats the tentacles of the Portuguese man o' war. Instead of being stung, it stores the unfired stinging cells in the tips of its finger-like appendages, so its own body stings. If you ever see one washed up on a beach, don't touch it.

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