Markus Varesvuo / Hazel grouse (Tetrastes bonasia) male walking through snow, Kuusamo, Finland, April

Laurent Geslin / Alpine Ibex (Capra Ibex ibex) scratching bottom, Alps, France

Kevin Schafer / Southern / Double-wattled cassowary (Casuarius casuarius) wild, adult male rear view, Atherton Tablelands, Queensland, Australia, November

Anup Shah / African elephant (Loxodonta africana) group leaving a waterhole - wide angle perspective. Masai Mara National Reserve, Kenya. March

Sergey Gorshkov / Red fox (Vulpes vulpes) two foxes at den in deep snow, Kamchatka, Far east Russia, November

Konstantin Mikhailov / Mule Deer (Odocoileus hemionus columbianus) female running, rear view. Olympic NP, Hurricane Hill, Washington, USA, October 2009.

Andy Rouse / Polar Bear (Ursus maritimus) mother and cub (18 months) walking away after swimming, Svalbard, Norway (non-ex) September 2009. Images 01262527 and 01262528 are cropped from this frame

Andy Rouse / Polar Bear (Ursus maritimus) mother and cub (18 months) walking away after swimming, Svalbard, Norway (non-ex). This image is a crop of 01262710.

Andy Rouse / Polar Bear (Ursus maritimus) mother and cub (18 months) walking away after swimming, Svalbard, Norway (non-ex). This image is a crop of 01262710

Shattil & Rozinski / Brown bear (Ursus arctos) mother grazing while cub rolls on the ground, Alaska, USA

Fiona Rogers / Wild mature male mandrill (Mandrillus sphinx) in gallery forest during dry season. Lope National Park, Gabon. June 2008.

Bernard Castelein / Indian rhinoceroses, rear view {Rhinoceros unicornis} Kaziranga, Assam, India