Jeff Foott / Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, Wyoming
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Jeff Foott / Fumaroles, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, Wyoming
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Jeff Foott / Geyser spouting, Old Faithful, Yellowstone National Park, Wyoming
00582711
Chase Dekker / Red Fox (Vulpes vulpes) in winter, Grand Teton National Park, Wyoming
00582606
Chase Dekker / Great Gray Owl (Strix nebulosa), Grand Teton National Park, Wyoming
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Chase Dekker / Moose (Alces alces shirasi) bull flehming in autumn, Grand Teton National Park, Wyoming
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Chase Dekker / Moose (Alces alces shirasi) bull flehming in autumn, Grand Teton National Park, Wyoming
01612194
Nick Garbutt / Pack of wolves (Canis lupus). Yellowstone National Park, Wyoming, USA. January.
01612199
Nick Garbutt / Male American Bison (Bison bison) walking through snow. Firehole River Valley, Yellowstone National Park, Wyoming, USA. January
00585347
Daniel J. Cox / Gray Wolf (Canis lupus) predating female Elk (Cervus elaphus) crossing river, Alum Creek, Yellowstone National Park, Wyoming, sequence 4 of 4
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Daniel J. Cox / Gray Wolf (Canis lupus) killing female Elk (Cervus elaphus) crossing river, Alum Creek, Yellowstone National Park, Wyoming, sequence 3 of 4
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Daniel J. Cox / Gray Wolf (Canis lupus) attacking female Elk (Cervus elaphus) crossing river, Alum Creek, Yellowstone National Park, Wyoming, sequence 2 of 4
