Ashley Cooper / Car in flood waters in the village of Toll Bar near Doncaster, South Yorkshire, England, UK, 28th July 2007.

Suzi Eszterhas / Tasmanian Devil (Sarcophilus harrisii) conservationist, Wade Anthony, bottle-feeding four-month old baby devil, Devils at Cradle, Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Tom Gilks / Women carrying plastic washing bowl on head wade through invasive Water hyacinth (Eichhornia crassipes) to reach lake edge, Kisumu region, Lake Victoria, Kenya

Tim Laman / Jessica and Russell Laman wade ahead while other team members hike and pull the loaded boat up the Air Putih river, Gunung Palung National Park. August 2010

George Sanker / Black-necked Stilt (Himantopus mexicanus) wading through water, Myakka River State Park, Florida, USA, March.

Steven Kazlowski / Polar bear (Ursus maritimus) pair of curious spring cubs wade in shallow waters off newly formed pack ice, mother rests behind on ice, Bernard Spit, Alaska, USA, October

Anup Shah / Bonobo (Pan paniscus) adolescent male using a branch as support to wade through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bornean Orang-utan (Pongo pygmaeus wurmbii) sub-adult male wading through water taking care to keep his balance as he is unable to swim. Camp Bulu, Lamandau Nature Reserve, Central Kalimantan, Borneo,...

Fiona Rogers / Bornean Orang-utan (Pongo pygmaeus wurmbii) sub-adult male wading through water taking care to keep his balance as he is unable to swim. Camp Bulu, Lamandau Nature Reserve, Central Kalimantan, Borneo,...

Frederique Olivier / Camerman Wade Fairley filming colony of Emperor penguins, Antarctica, for BBC Planet Earth series 2005

Gabriel Rojo / Tourists wade out to swim in geothermal water, Deception Island, Antarctic Peninsula, Antarctica, February 2006

Frederique Olivier / Cameraman Wade Fairley.filming colony of Emperor penguins in snow blizzard, Antarctica, for BBC Planet Earth series 2005