Rolf Nussbaumer / Eastern grey fox (Urocyon cinereoargenteus) adult at dusk in Oak tree (Quercus virginiana), Dinero, Lake Corpus Christi, South Texas, USA.
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Oriol Alamany / Argentine grey fox (Pseudalopex griseus) resting on ground, Torres del Paine National Park, Patagonia, Chile
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Oriol Alamany / Argentine grey fox (Pseudalopex griseus) walking profile, Torres del Paine National Park, Patagonia, Chile
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Oriol Alamany / Argentine grey fox (Pseudalopex griseus) standing alert, Torres del Paine National Park, Patagonia, Chile
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Oriol Alamany / Argentine grey fox (Pseudalopex griseus) resting on ground, Torres del Paine National Park, Patagonia, Chile
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Jim Brandenburg / Timber Wolf (Canis lupus) and fox tracks in snow near lake, Minnesota
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Steven Kazlowski / Arctic fox (Alopex lagopus) running profile, its coat changing from summer grey to winter white, 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October
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Peter Cairns / Stuffed Grey wolf (Canis lupus) as part of shop trophy animal selection, Jackson Hole, Wyoming, USA, September 2008
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Pete Oxford / Gray Fox (Urocyon cinereoargenteus). Punta Allen, Sian Ka'an Biosphere Reserve,Quintana Roo,Yucatan Peninsula, Mexico.
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Pete Oxford / Gray Fox (Urocyon cinereoargenteus). Punta Allen, Sian Ka'an Biosphere Reserve,Quintana Roo,Yucatan Peninsula, Mexico.
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Pete Oxford / Gray Fox (Urocyon cinereoargenteus). Punta Allen, Sian Ka'an Biosphere Reserve,Quintana Roo,Yucatan Peninsula, Mexico.
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Pete Oxford / Gray Fox (Urocyon cinereoargenteus). Punta Allen, Sian Ka'an Biosphere Reserve,Quintana Roo,Yucatan Peninsula, Mexico.