Danny Green / Polar bear (Ursus maritimus) looking for food on ice. Svalbard, Norway, April.

Doug Allan / Killer Whales (Orcinus orca) spy-hopping to observe Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Free...

Ashley Cooper / Herdwick sheep feeding on hay during a cold snap near Tarn Hows in the Lake district UK. January 2009

Cyril Ruoso / Long tailed macaque (Macaca fascicularis) with an ice cream which it was given at a temple. Thailand

Francisco Marquez / Child eating ice lolly with donkeys standing behind, City of Harar. Ethiopia. February 2008.

Nature Picture Library / Frozen whale meat for sale, intended for consumption as sashimi

Markus Varesvuo / Hooded Crow (Corvus cornix) trying to remove food stuff from frozen walkway, Helsinki, Finland, December

Cheryl-Samantha Owen / Customers look at the deli, fresh and frozen seafood display inlcuding West coast rock lobster (Jasus lalandii) in the restaurant, Cape Town Fish Market, restaurant, Victoria and Alfred Waterfront, Ca...

Cheryl-Samantha Owen / West coast rock lobster (Jasus lalandii), frozen, at a seafood counter in the Food Lovers Supermarket, Noordhoek, Longbeach Mall, South Africa

Peter Cairns / Ice fishing on a freshwater lake, Sweden, April 2008

Peter Cairns / Ice fishing on a freshwater lake, Sweden, April 2008

Terry Whittaker / 2020VISION / Grey herons (Ardea cinerea) fighting over food on a frozen lake, Regents Park, London, England, UK, February