Carol Walker / Horses on ranch, two greys with mountains in background, Jackson Hole, Wyoming, USA
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Carol Walker / Herd of horses on ranch, Jackson Hole, Wyoming, USA
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Jeff Vanuga / Elk (Cervus canadensis) wintering on the National Elk Refuge, Jackson, Wyoming, USA, February.
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Russell Laman / Elk (Cervus canadensis) in a snowstorm. National Elk Refuge, Jackson Hole, Wyoming, USA. HIGHLY COMMENDED: Ten years and under in the Young Wildlife Photographer of the Year competition 2010
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Andy Rouse / Black-browed albatross (Thalassarche melanophrys) with chick on nest, part of a large colony, Steeple Jason, Falkland Islands (non-ex)
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Jabruson / Close up of Jackson's chameleon face {Chamaeleo jacksonii} Kenya
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Jabruson / Jackson's chameleon with tongue extended {Chamaeleo jacksonii}
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Jabruson / Male Jackson's chameleon catches grasshopper with tongue{Chamaeleo jacksonii} Mt Kenya, Kenya
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Chris Newbert / Sponge (Latrunculia magnifica) surrounded by Basslet (Pseudanthias sp) and Soft Coral (Dendronephthya sp), Jackson Reef, Red Sea
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Jim Brandenburg / Elk (Cervus elaphus) herd, National Elk Refuge, Jackson Hole, Wyoming
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Jeff Rotman / Close-up Port Jackson shark face (Heterodontus philippi) South Australia
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Kirkendall-Spring / Golf carts, Jackson Hole Golf & Tennis Club, with the Teton mountain range in the background, Wyoming, USA, July 2011
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Kirkendall-Spring / Golf bags and clubs, with golfer, Jackson Hole Golf and Tennis Club, Teton mountain range in the background, Wyoming, USA, July 2011
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Ann & Steve Toon / Lelwel hartebeest (Alcelaphus buselaphus lelwel) family group, Ol Pejeta Conservancy, Laikipia, Kenya, Africa
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David Pike / Moulton Barn, Antelope Flats, near Jackson, Wyoming, USA. Grand Teton NP. July 2009.
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David Pike / Moulton Barn, Mormon Row, Antelope Flats near Jackson, Wyoming, USA. Grand Teton NP. July 2009.
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David Pike / Uinta ground squirrel (Spermophilus armatus) calling. Springcreek Ranch, Jackson, Wyoming, USA.
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David Pike / Uinta ground squirrel (Spermophilus armatus). Springcreek Ranch, Jackson, Wyoming, USA.
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Michael D. Kern / Dwarf Jackson's chameleon (Trioceros jacksonii merumontanus) captive from Africa
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Michael D. Kern / Dwarf Jackson's chameleon (Trioceros jacksonii merumontanus) with mouth open, captive from Africa
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Michael D. Kern / Dwarf Jackson's chameleon (Trioceros jacksonii merumontanus) captive from Africa
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Michael D. Kern / Dwarf Jackson's chameleon (Trioceros jacksonii merumontanus) mating pair, captive from Africa
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Michael D. Kern / Dwarf Jackson's chameleon (Trioceros jacksonii merumontanus) mating pair, captive from Africa
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Carol Walker / Herd of horses running over pastureland on ranch, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Three grey horses on ranch, Jackson Hole, Wyoming, USA
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Carol Walker / Three pinto horses running on ranch, Jackson Hole, Wyoming, USA
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Carol Walker / Gray horse running on ranch, Jackson Hole, Wyoming, USA
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Carol Walker / Herd of horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Herd of horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / RF- Herd of horses on ranch with mountains. Jackson Hole, Wyoming, USA. July 2011. (This image may be licensed either as rights managed or royalty free.)
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Carol Walker / Herd of horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, June 2011
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Carol Walker / Herd of horses emerging in line from woodland on ranch, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Herd of horses running over pastureland on ranch, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Herd of horses running over pastureland on ranch, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Horse on ranch, pinto colouration, Jackson Hole, Wyoming, USA
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Carol Walker / Horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Herd of horses on ranch, three pintos running, Jackson Hole, Wyoming, USA
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Carol Walker / Herd of horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Horses on ranch, two horses running, Jackson Hole, Wyoming, USA
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Carol Walker / RF- Herd of horses on ranch with distant mountains. Jackson Hole, Wyoming, USA. July 2011. (This image may be licensed either as rights managed or royalty free.)
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Carol Walker / Horse on ranch, galloping, Jackson Hole, Wyoming, USA
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Carol Walker / Herd of horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Black horse on ranch, Jackson Hole, Wyoming, USA
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Carol Walker / Herd of horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, July 2011
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Carol Walker / Herd of horses on ranch, galloping out of woodland, Jackson Hole, Wyoming, USA
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Carol Walker / Herd of horses on ranch with mountains in background, Jackson Hole, Wyoming, USA, July 2011
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Brent Stephenson / Fiordland crested penguin (Eudyptes pachyrhynchus) on rocks heading back to the sea, Jackson Bay, West Coast, New Zealand, February.
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Brent Stephenson / Fiordland crested penguin (Eudyptes pachyrhynchus) crosses the road heading back to sea, Jackson Bay, West Coast, New Zealand, February.
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George Sanker / Mountain reflected in Jackson Lake, Grand Teton National Park, Wyoming, USA, September 2006
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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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Graham Eaton / A pair of Jackson's / Lelwel Hartebeest (Alcelaphus buselaphus jacksoni / lelweli) standing in scrub. Murchison Falls National Park, Uganda, April.
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Kirkendall-Spring / Henry M Jackson Memorial Visitor Center in the Paradise area of Mount Rainier National Park, Washington, USA, August 2009
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Jeff Vanuga / Two Trumpeter Swans (Cygnus buccinator) in flight showing the extent of the up and down-stroke. Flat Creek, Jackson, Wyoming, January.
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Jeff Vanuga / Jackson Hole Antler Auction held on the town square annually and proceeds of the sale go to the Boy Scouts of America. Jackson, Wyoming, USA, April 2006.
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Jeff Vanuga / Jackson Hole Antler Auction held on the town square annually and proceeds of the sale go to the Boy Scouts of America. Jackson, Wyoming, USA, April 2006.
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Bryan and Cherry Alexander / Sign written in Russian and Norwegian by the remains of the hut that Nansen and Johansen inhabited in 1895-6. Cape Norwegia, Jackson Island, Franz Josef Land, Russia, 1998.
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Tui De Roy / Jackson's Widowbird (Euplectes jacksoni) male, Ol Pejeta Conservancy, Kenya
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Jeff Rotman / Nostrils and mouth parts of Port Jackson shark (Heterodontus philippi) at night, South Australia, Great Australian Bight
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Jeff Rotman / Close-up of mouth of Port Jackson Shark (Heterodontus philippi) Eastern Australia, Indian Ocean.
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Anup Shah / Jackson's Widowbird (Euplectes jacksoni) perched in tree, Masai Mara National Reserve, Kenya. February
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Sumio Harada / Mount Jackson with full moon, Glacier National Park, Montana
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Sumio Harada / Mount Jackson and full moon, Glacier National Park, Montana
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George Sanker / Small pond near Jackson Lake with mountains reflected on a calm morning, Grand Teton National Park, Wyoming, USA, September 2006
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Jeff Vanuga / Shed antlers of Elk for sale at Jackson Hole Antler Auction held on the town square annually and proceeds of the sale go to the Boy Scouts of America. Jackson, Wyoming, USA, May 2006
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Jeff Vanuga / Antler Hunter picking up shed antlers from Elk in the Bridger - Teton National Forest near Jackson, Wyoming, USA. Antlers are later sold to raise funds for the Boy Scouts of America. April 2009
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Jeff Vanuga / Elk {Cervus canadensis} female trapped in a corale by the US Fish and Wildife Service and the Wyoming Game and Fish Department await testing by researchers for brucillosis disease. National Elk Refuge...
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Jeff Vanuga / Elk {Cervus canadensis} trapped in a corale by the US Fish and Wildife Service and the Wyoming Game and Fish Department await testing by researchers for brucillosis disease. National Elk Refuge, Jacks...
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Jeff Vanuga / Shed elk antlers at the Jackson Hole Antler Auction held on the town square annually. Proceeds of the sale go to support the Boy Scouts of America. Jackson, Wyoming, USA, May 2006
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Jeff Vanuga / Antler Hunters picking up shed antlers from Elk in the Bridger - Teton National Forest near Jackson, Wyoming, USA. Antlers are later sold to raise funds for the Boy Scouts of America, April 2009
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Jeff Vanuga / Shed Elk antlers at the Jackson Hole Antler Auction held on the town square annually. Proceeds of the sale go to support the Boy Scouts of America. Jackson, Wyoming, USA, May 2006
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Fred Bavendam / Port Jackson Shark (Heterodontus portusjacksoni) spiral egg case, New South Wales, Australia
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Matthias Breiter / Grand Tetons above Jackson Lake in early spring, Grand Teton National Park, Wyoming
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Mike Parry / Port Jackson Shark (Heterodontus portusjackson), Jervis Bay, Australia. Digitally enhanced
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Harley Betts / Sunrise over Cape Jackson, outer Marlborough Sounds, New Zealand
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Juergen Freund / Port Jackson shark (Heterodontus Philippi) amongst seaweed, Albany, Western Australia
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Juergen Freund / Port Jackson shark (Heterodontus Philippi) swimming amongst seaweed, Albany, Western Australia
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Thomas Marent / Jackson's Chameleon (Chamaeleo jacksonii) on branch, Mount Kenya National Park, Kenya
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Kirkendall-Spring / Teton Range with Jackson Lake, Grand Teton NP, Wyoming, USA
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Kirkendall-Spring / Jackson Hole and the Teton mountain range in winter, Grand Teton National Park, Wyoming, USA
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Jeff Vanuga / Man skiing the powder at Teton Village Resort, Jackson, Wyoming, USA
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Jabruson / Close up of Jackson's chameleon foot (Chameleo jacksonii) gripping branch, Kenya.
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Jabruson / Jackson's chameleon {Chamaeleo jacksonii} with eye turned backwards, Kenya
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Jabruson / Close up of Jackson's chameleon feet {Chamaeleo jacksonii} Embu, Kenya
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Jabruson / Jackson's chameleon about to extend tongue {Chamaeleo jacksonii}
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Andy Sands / Jackson's chameleon {Chamaeleo jacksonii} female on branch. Captive. UK.
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Doug Perrine / Port Jackson horn shark {Heterodontus philippi jacksoni} Australia, pacific
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Brent Hedges / Juvenile Port Jackson shark {Heterodontus potusjacksoni}, Australia.
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Kim Taylor / Jacksons chameleon {Chamaeleo jacksonii} male head portrait. Captive, Madagascar.
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Kim Taylor / Jacksons 3-horned chameleon {Chamaeleo jacksonii} catching cricket with tongue. Captive.
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Kim Taylor / Jacksons 3-horned chameleon {Chamaeleo jacksonii} catches fly with tongue Captive, Kenya.
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Kim Taylor / RF- Jacksons 3-horned chameleon (Chamaeleo jacksonii) catching fly. Captive, Kenya. (This image may be licensed either as rights managed or royalty free.)
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TOM MANGELSEN / American Elk herd in snow. (Cervus elaphus) National Elk Refuge, Jackson, Wyoming, USA.
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TOM MANGELSEN / American Elk herd in snow (Cervus elaphus) National Elk Refuge. Jackson, Wyoming, USA.
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TOM MANGELSEN / American Elk herd in snow. (Cervus elaphus) National Elk Refuge, Jackson, Wyoming, USA.
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Phil Savoie / Jackson's Chameleon {Chamaeleo jacksonii}
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Pete Oxford / Port jackson shark, Galapagos. (Heterodontus philippi)