Yellowstone aspen (IMAGE)

Oregon State University

Yellowstone aspen

Caption

Oregon State University researchers have documented the first new generation of overstory aspen trees in Yellowstone’s northern range in 80 years, three decades after wolves were reintroduced to the nation’s oldest national park. Photo provided by Luke Painter, OSU College of Agricultural Sciences.

Credit

Photo provided by Luke Painter, OSU College of Agricultural Sciences.

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