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Bison shaking off water after coming out of the Yellowstone River

Bison shaking off water after coming out of the Yellowstone River

Bison grazing above Yellowstone Lake

Bison grazing above Yellowstone Lake

Bison chewing cud

Bison chewing cud

Bison herd with at least 9 calves crossing the Madison River

Bison herd with at least 9 calves crossing the Madison River

Bison calf hiding behind its mother shortly after birth

Bison calf hiding behind its mother shortly after birth

Bison fighting by Midway Geyser Basin - Yellowstone National Park

Bison herd in the snow - South of Mammoth Hot Springs - Yellowstone National Park

Bison herd in the snow - South of Mammoth Hot Springs - Yellowstone National Park

Day 2 - Bison in front of Yellowstone Lake

Day 2 - Bison in front of Yellowstone Lake

Crossing Yellowstone River - Yellowstone National park

Crossing Yellowstone River - Yellowstone National park