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Trees have a hidden underground network called the ‘wood wide web’
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Trees have a hidden underground network called the ‘wood wide web’

Under the forest floor, fungi partner with tree roots: their fine threads help trees access water and nutrients, while trees share carbon-rich sugars in return. Some fungal networks may connect several plants, inspiring the nickname “wood wide web.” But evidence that older trees deliberately feed or warn their offspring through these links remains unproven, and scientists caution against treating forests as family networks. A global study mapping more than 1.1 million forest plots reveals how tree-fungus partnerships vary around the world, offering clues to how forests may respond to changing climates.
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