Billy Black / Couple with snorkelling gear emerging from the water near a Sunsail Oceanis 523 at anchored in the BVI's. March 2006. Model and property released.

LYNN M. STONE / Trumpeter swan (Cygnus buccinator) walking on ice during sub zero weather, near Hudson, Wisconsin, USA, February

Mark Carwardine / Komodo Dragon / Monitor (Varanus komodoensis) walking through stream. Vulnerable. Komodo Island, Indonesia.

Tim Laman / Kwerba Village girls walking back to their village with firewood and water. Foja Mountains, Papua, Indonesia, November 2008. (taken during Conservation International Rapid Assessment Program expeditio...

Ernie Janes / Reddish egret (Egretta rufescens) stalking, Florida, USA

Ernie Janes / Reddish egret (Egretta rufescens) fishing, Florida, USA

Ernie Janes / Roseate spoonbill (Platalea ajaja) Florida USA

George Sanker / Elk / Wapiti (Cervus canadensis) on the banks of the Snake River. Grand Teton National Park, Wyoming, USA, June.

Grzegorz Lesniewski / White Stork (Ciconia ciconia) walking through water as a flock of waterfowl takes flight. Biebrza Marshes, Biebrza National Park, Poland, August.

Charlie Summers / Black Bear (Ursus americanus) by waterside. Neets Bay, Alaska, July.

Klaus Echle / Badger (Meles meles) walking through water. The Black Forest, Germany, May.

Ernie Janes / Mallard (Anas platyrhynchos) drake walking on frozen pond, UK

Ernie Janes / Lapwing (Vanellus vanellus) wading in water, Bedfordshire, UK

Andy Rouse / Silhouette of Grizzly bear (Ursus arctos horribilis) in water hunting for salmon, Katmai NP, Alaska, USA, August

Ernie Janes / People walking in woodland reflected in lake, Holkham Park, Norfolk, UK, winter

Ernie Janes / Grey heron (Ardea cinerea) carrying Eel prey, Titchwell RSPB reserve, Norfolk, UK

Ernie Janes / Grey heron (Ardea cinerea) carrying Eel prey, Titchwell RSPB reserve, Norfolk, UK

Dave Watts / Grey Heron (Ardea cinerea) walking in shallow water. The Camargue, France, April.

Anup Shah / Two female Proboscis monkeys (Nasalis larvatus) one with a baby walking across the mudflats of a mangrove swamp revealed at low tide with the sea in the background, Bako National Park, Sarawak, Borneo...

Rolf Nussbaumer / Striped Skunk (Mephitis mephitis), adult at night walking on log. Laredo, Webb County, South Texas, USA, April.

Sergey Gorshkov / Ttwo Lechwe (Kobus leche) wading through wetlands at dusk, Okavango Delta, Botswana, April

Ernie Janes / People walking along towpath beside the Cromford Canal, Derbyshire, UK, in autumn

Ernie Janes / Dunlin (Calidris alpina) feeding on frozen coastal pool, Norfolk, UK, December

Ernie Janes / Cley nature reserve on an Autumn evening with silhouette of visitors walking along dyke and waders and ducks on water, Norfolk, UK, November

Anup Shah / Bonobo (Pan paniscus) group walking along the edge of a lake, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) mature male 'Kasongo' wading into a lake thorugh water lilies, panoramic wide angle shot, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) adolescent male wading through water supported by a branch, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) male 'Kikwit' wading through lake amongst water lettuce plants, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) adolescent male wading through water supported by a branch, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) male 'Kikwit' wading through deep water amongst water lettuce plants, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) female 'Opala' wading through deep water amongst water lilies, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) adolescent male wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) female 'Opala' wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) male 'Kikwit' wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) adolescent male wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Terry Whittaker / 2020VISION / Cameraman, Will Bolton, carrying photographic equipment on location for 2020 Vision at Rutland Water, Rutland, UK, April 2011, Model released

Terry Whittaker / 2020VISION / Cameraman, Will Bolton, carrying photographic equipment on location for 2020 Vision at Rutland Water, Rutland, UK, April 2011, Model released

Terry Whittaker / 2020VISION / Reserve Manager Tim Appleton, Osprey Project Manager Tim Mackrill, Field Officer John Wright and Assistant Warden Lloyd Park check nesting islands and rafts at the Anglian Birdwatching Centre using an...

Fiona Rogers / Bonobo (Pan paniscus) female wading across a stretch of water carrying her baby aged 12-14 months on her back (Pan paniscus). Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) adolescent male wading through water supported by a branch, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) young female 'Lisala' wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) adolescent male wading through water supported by a branch, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) female wading through water, drinking, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) female wading across a stretch of water carrying her baby aged 12-14 months on her back, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) adolescent male wading through water supported by a branch, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) mature male 'Kasongo' wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) adolescent male wading though water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) adolescent male wading through water supported by a branch, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) female wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) female wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) female wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) adolescent male foraging in water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) mature male 'Kikwit' wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) mature male 'Manono' wading through water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Ingo Arndt / King Penguin (Aptenodytes patagonicus) group returning from sea, Volunteer Point, Falkland Islands

Brent Stephenson / New Zealand Storm Petrel (Pealeornis / Oceanites maoriana) feeding whilst 'walking' on water with wings raised. Hauraki Gulf, Auckland, New Zealand, January.

Marie Read / Comb-crested Jacana / Lotusbird (Irediparra gallinacea), adult walking over lilypad, showing its elongated toes. Yellow Water, Kakadu National Park, Northern Territory, Australia, September.

Carol Walker / Spanish / Andalusian horse performing Alta Escuela moves, walking through waves on beach, Andalucia, Spain, model released

Andy Sands / Sanderling (Calidris alba) walking through shallow water. Norfolk, England, UK, February.

Axel Gomille / Tiger (Panthera tigris) male walking by water. Ranthambhore National Park, India.

Lassi Rautiainen / Bean goose (Anser fabalis) two walking over snow near water, Finland, May

Jeff Vanuga / American Bison / Buffalo (Bison bison) frosted with snow walking by water. Biscuit Basin, Yellowstone National Park, Wyoming, USA, January.

Diane McAllister / American avocet (Recurvirostra americana) moving quietly along in a small stream near Swan Lake Refuge in Lemmon Valley. Nevada, USA, July

Diane McAllister / Two Sandhill cranes (Grus canadensis) wading quietly out into the water from shore. Bosque del Apache, New Mexico, USA, February

Diane McAllister / Mallard drake (Anas platyrhynchos) walking across a partially frozen area on a small pond in a neighborhood in suburban Reno. Nevada, USA, February

Diane McAllister / Grizzly bear cub (Ursus arctos horribilis) looking curiously at the camera while hunting for fish with its mother near the shoreline. Brooks River, Alaska, USA, October

Charlie Summers / Greater Sandhill Crane (Grus canadensis tabida) walking through shallow water. Bosque del Apache, New Mexico, USA, January.

LYNN M. STONE / Marbled Godwit (Limosa fedoa) adult in non-breeding plumage walking on tidal flat during extreme low tide. Dunedin, Florida, USA, November.

Lynn M Stone / Roseate Spoonbill (Platalea ajaja) adult in non-breeding plumage standing in shallow water. Dunedin, Florida, USA, November.

Andy Rouse / Polar Bear (Ursus maritimus) climbing out of water onto ice. Svalbard, Norway, Europe, February.

Andy Rouse / Grizzly Bear (Ursus arctos horribilis) walking by a river, dripping water. Katmai, Alaska, USA, August.

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,...

Brent Stephenson / Masked Lapwing / Plover (Vanellus miles miles) walking in shallow water. This is the northern subspecies. Near Cairns, Queensland, Australia, April.

Brent Stephenson / White-faced Storm-Petrel (Pelagodroma marina) pulling prey from the sea whilst "water skipping" - walking on water with wings raised. Hauraki Gulf, Auckland, New Zealand, February.

Luiz Claudio Marigo / Jaguar (Panthera onca palustris) female on the shore of Piquiri River. The Pantanal wetlands of Mato Grosso State, Brazil, October.

Daniel Heuclin / Desert Tortoise (Gopherus agassizii) emerging from water. Controlled conditions. Foothills of Catalina mountains, Arizona, USA, October.

Staffan Widstrand / Sally Lightfoot Crab (Grapsus grapsus) walking through shallow water. Rabida Island, Galapagos, Ecuador, April.

Nick Upton / Overview of tourists on boardwalk and bridges, dwarfed by the Great waterfall (Veliki Slap) above and Sastavci waterfall below them, Plitvice Lakes National Park, Croatia, July 2010.

Nick Upton / Overview of tourists walking on boardwalk below Velike kaskade waterfalls, with limestone cliffs in the background, Plitvice Lakes National Park, Croatia, July 2010.

Nick Upton / Ribcev Laz church and bridge at the south end of Lake Bohinj, with people walking, fishing, bathing and canoeing in the foreground and forested Julian Alps in the background, Triglav National Park, Sl...

Nick Upton / Overview of tourists on boardwalk below Velike kaskade waterfalls, Plitvice Lakes National Park, Croatia, July 2010.

Markus Varesvuo / Bar-tailed Godwit (Limosa lapponica) juvenile, wading in shallow water, Hanko, Finland, September

Markus Varesvuo / Redshank (Tringa totanus) wading through shallow water searching for food, Finland, May

Markus Varesvuo / Green sandpiper (Tringa ochropus) wading through shallow water searching for food, Loviisa, Finland, June

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) sub-adult male wading through water raising his arms to balance as he is unable to swim. Camp Bulu, Lamandau Nature Reserve, Central Kalimantan, Borneo, Indo...

Alan Williams / Bar-tailed Godwit (Limosa lapponica) in winter plumage walking on shore in late afternoon light. Liverpool Bay, UK, December.

Alan Williams / Ringed Plover (Charadrius hiaticula) foraging on muddy shore in late afternoon light. Liverpool Bay, UK, December.

Alan Williams / Curlew (Numenius arquata) walking on mudflat. Liverpool Bay, UK, October.

Alan Williams / Bar-tailed Godwit (Limosa lapponica) in winter plumage walking on shore in late afternoon light. Liverpool Bay, UK, December.

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

Alan Williams / Bar-tailed Godwit (Limosa lapponica) in winter plumage walking at tide edge in late afternoon light. Liverpool Bay, UK, December.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) walking into a shallow stream. Foreste Casentinesi National Park, Italy, July.

Edwin Giesbers / Grey Heron (Ardea cinerea) walking on ice by water. The Netherlands, January.

Edwin Giesbers / European Otter (Lutra lutra) walking across frozen water. The Netherlands, December. Captive.

Edwin Giesbers / European Otter (Lutra lutra) walking from frozen water into some trees. The Netherlands, December. Captive.

Frederique Olivier / Royal Penguin (Eudyptes schlegeli) colony walking along creek, Macquarie Island, Southern Atlantic, Australian Antarctica, December 2007