Next they turned to fire to see if possibly a reduction in the number of forest fires ... The elimination of Yellowstone's wolves allowed the elk to browse aspens unchecked. Finally, Ripple ...

In Yellowstone, the wolves’ main prey is elk. With fewer elk on the landscape, following wolf reintroduction, the “survival of the next lower trophic level” — in this case young aspen ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

Large herbivores like bison or elk have continuously lived in the Yellowstone National Park region for about 2,300 years, according to a new analysis of chemicals preserved in lake sediments.

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

Brett French Lee Newspapers Nov 11, 2024 Nov 11, 2024 BILLINGS — For more than a decade a passionate debate has reverberated within Yellowstone ... by helping to reduce elk populations, called ...