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The global rule that predicts where life thrives—and where it fails

What if all life on Earth followed a surprisingly simple pattern? New research shows that in every region, species tend to cluster in small hotspots and then gradually thin out. This universal rule applies across drastically different organisms and habitats from trees to dragonflies, oceans to forests. Scientists now believe environmental filtering shapes this global distribution, providing new tools to predict how life responds to climate change and biodiversity threats.

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