Earthworms contribute to 6.5% of world grain production: study

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Not Just Bees: Earthworms Contribute to 6.5% of Global Grain

Earthworms contribute to 6.5% of global grain production

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Feeding the World: Earthworms Contribute to 6.5% of Global Grain

Earthworms contribute to 6.5% of world grain production — study

Earthworms: Nature's Grain Producers Surpass Russia's Yield

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