Phil Savoie / Pink lady mayfly (Epeorus albertae) close up of eye of male, Madison River, Montana, USA, August.
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Nick Garbutt / North American bobcat (Lynx rufus) striding through deep snow. Madison River Valley, Yellowstone National Park, Wyoming, USA. January
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Phil Savoie / Muskrat (Ondatra zibethicus) swimming, Gallatin National Forest, Bozeman, Montana, USA, May.
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Phil Savoie / Landscape of Madison Mountain Range, Beaverhead National Forest, Montana, USA, July 2011.
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Phil Savoie / Racoon (Procyon lotor) at riverside, Madison River, Gallatin National Forest, Bozeman, Montana, USA, May.
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Phil Savoie / Muskrat (Ondatra zibethicus), swimming, Madison River, Gallatin National Forest, Bozeman, Montana, USA, May.
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Nick Garbutt / RF - Coyote (Canis latrans) foraging on ice. Madison Valley, Yellowstone National Park, USA. February. (This image may be licensed either as rights managed or royalty free.)
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Nick Garbutt / RF - Coyote (Canis latrans) sitting on ice, looking down. Madison Valley, Yellowstone National Park, USA. (This image may be licensed either as rights managed or royalty free.)
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Nick Garbutt / Coyotes (Canis latrans) and Bison (Bison bison) in deep snow. Madison River Valley, Yellowstone National Park, Wyoming, USA.
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Nick Garbutt / American bison (Bison bison) crossing the Madison River. Yellowstone National Park, Wyoming, USA. January
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Nick Garbutt / Coyote (Canis latrans) pounce hunting for rodents in deep snow. Madison River Valley, Yellowstone National Park, Wyoming, USA.
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Nick Garbutt / Bobcat (Lynx rufus) standing on branch in snow. Madison River Valley, Yellowstone National Park, Wyoming, USA. January.
