By evaluating the health of waterways across the U. S. , researchers have identified a network encompassing about one-third of rivers and streams that, if conserved and restored, could sustain the nation's freshwater biodiversity in the face of habitat degradation and climate change.

Source: [Phys.org](https://phys.org/news/2026-09-nation-waterways-sustain-freshwater-biodiversity.html)

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