Peter Cairns / American bison (Bison bison) walking through snow using tracks made by other animals, Yellowstone National Park, Wyoming, USA, February.
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Juan Carlos Munoz / Walia ibex (Capra walie) silhouetted against the sky, Simien Mountains, Ethiopia.
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David Fleetham / Green turtle (Chelonia mydas) lifting head above surface for a breath off Maui, Hawaii.
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David Pattyn / RF - Alpine ibex (Capra ibex) male in deep snow Gran Paradiso National Park, the Alps, Italy. January (This image may be licensed either as rights managed or royalty free.)
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Sergey Gorshkov / Polar bear (Ursus maritimus) struggling up a steep slope watched by female with cub, Wrangel Island, Far Eastern Russia, September.
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Rick Tomlinson / "Perseverance" and "Salvo" racing at Cowes Week, August 2009.
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Eric Baccega / Grizzly bear (Ursus arctos horribilis) attempting to catch Salmon in Brooks river, Katmai National Park, Alaska, USA, July
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Tui De Roy / Southern Elephant Seal (Mirounga leonina) bull coming ashore to molt, Perseverance Harbour, Campbell Island, New Zealand
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Tui De Roy / Hooker's Sea Lion (Phocarctos hookeri) cow sparring with young bull, Perseverance Harbour, Campbell Island, New Zealand
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Tui De Roy / Southern Elephant Seal (Mirounga leonina) bull in wallow, de la Vire Point, Perseverance Harbor, Campbell Island, New Zealand
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Tui De Roy / Hooker's Sea Lion (Phocarctos hookeri) cow sparring with young bull, Perseverance Harbour, Campbell Island, New Zealand
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Mike Read / Aiguille de la Perseverance (2901m) Aiguilles Rouge NR Haute Savoie Alps France
