The return of wolves and other predators to Yellowstone has reduced elk browsing, allowing aspen trees to grow back for the ...

The aspen leaf miners feast on each other, keeping their species alive and helping maintain a portion of the leaf healthy.

The reintroduction of large carnivores has initiated a recovery process that had been shut down for decades,” says Painter in a statement.

For the first time since the 1940s, new aspens have joined the forest canopy in Yellowstone National Park. Researchers say ...