YELLOWSTONE NATIONAL PARK, Wyo. — Snow crunched underfoot as Mark Hebblewhite scanned the ridgelines of Canada’s Banff National Park. It was 1995, and the young biologist, fresh out of undergrad, was ...
New research questions the long-held theory that reintroduction of such a predator caused a trophic cascade, spawning renewal of vegetation and spurring biodiversity. Yellowstone’s ecological ...
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