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Mystery #3Tier 2plants / seeds

Why would a plant make its own fruit burn your mouth?

Bite into a chilli and your mouth feels like it is on fire, your eyes water, and you gulp for cool water. The plant built that fire on purpose, spending its own energy to pack it into its fruit. That seems mad, because a fruit is meant to be eaten. So why would a plant go to all that trouble to burn the very mouth eating it?

Bright red chillies hanging from a leafy chilli plant in the sun.
Photo: Vyacheslav Argenberg · CC BY 4.0 · via Wikimedia Commons

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Why might a plant want to burn the mouth eating its fruit?

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