Steven Kazlowski / Inupiaq / Inuit man hold his hand under the midnight sun in the Chukchi Sea, off shore from the arctic village of Barrow, Alaska, USA. April 2009

Edwin Giesbers / Four Mallard (Anas platyrhynchos) dabbling for food in icy water. The Netherlands, January.

Neil Lucas / Weddell seal (Leptonychotes weddellii) male surfacing in ice hole, McMurdo Sound, Ross Sea, Antarctica, November 2008

Jose B. Ruiz / Woman walking along beach with parasol. Playa Poniente, Benidorm, Spain.

Jerry Monkman / A young brother and sister walking towards the beach at Center Hill Preserve beach, Plymouth, Massachusetts, USA. Model Released. May 2008

Jerry Monkman / Lone hiker at sunrise on the Bold Coast trail in Cutler, Maine, USA, June 2009. Model released

Peter Cairns / Tourists silhouetted on boardwalk at Midway Geyser Basin. Yellowstone National Park, Wyoming, USA, September.

Roy Mangersnes / Man outside cabin in snowstorm, Agardh Bay, East coast of Spitsbergen, Svalbard, Norway, March 2009. Model released

Alex Hyde / Panther Chameleon {Furcifer pardalis} climbing along branch on beach, Masoala Peninsula National Park, north east Madagascar.

Bryan and Cherry Alexander / Polar bear (Ursus maritimus) picking her way across a lead on chunks of ice. Spitsbergen, Norway, 1993.

Jack Dykinga / Flock of Chilean Flamingos (Phoenicopterus chilensis) feeding, with the reflection of Andean volcanos in the heavily salted waters of this laguna, Atacama Desert, Los Flamencos National Reserve, Chile...

Charlie Summers / Gentoo Penguin (Pygoscelis papua) diving off iceberg and into waters of Pleneau Bay, Antarctica, November