How bison ‘reawakened’ the world’s oldest national park

The herbivore’s return to Yellowstone is restoring ancient patterns and reshaping the landscape from the ground up

Yellowstone national park is witnessing a striking ecological recovery, driven by the return of one of the US’s most iconic species. A study published in Science in August shows how the migration of roughly 5,000 bison across the park’s grasslands is restoring ancient patterns and reshaping the landscape from the ground up.

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