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BUZZING· 77%13m·2025-11-07·Science
BUZZING· 77%13m·2025-11-07·ScienceFall foliage is still a mystery: Why do some leaves turn red?
Short Wave
Scientists know why leaves turn yellow in the fall: Chlorophyll breaks down, revealing the yellow pigment that was there all along. But red? Red is a different story altogether. Leaves have to make a new pigment to turn red. Why would a dying leaf do that? Scientists don’t really know. NPR science correspondent Nell…
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77%
BUZZING
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