A 2000-year record of fecal biomarkers reveals past herbivore presence and impacts in a catchment in northern Yellowstone National Park, USA (IMAGE)
Caption
Bison cows and calves congregate in a meadow beside the Lamar River, Yellowstone National Park.
Credit
John Wendt, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
Usage Restrictions
Credit must be given to the creator.
License
CC BY