Tony Heald / Hippopotamus {Hippopotamus amphibius} territorial defense at water edge, Chobe national park, Botswana.

Jack Dykinga / Aurora Borealis reflected in Polar Lake, conifers silhouetted at edge. Near Great Slave Lake, Northwest Territories, Canada. September 2018.

Guy Edwardes / Lobster pots at edge of Loch Duich, Eilean Donan Castle in background. Highlands, Scotland, UK. January 2014.

Andy Rouse / Polar bear (Ursus maritimus) standing on pack ice at the water's edge, Svalbard, Norway. June.

Ross Hoddinott / Catbells and the edge of Derwentwater bathed in early morning light and autumnal colours, Latrigg, Keswick, The Lake District, Cumbria, UK. November 2016.

Frederique Olivier / Emperor penguin (Aptenodytes forsteri) tobogganing on an iceberg at sunset and diving from the edge, seen from a moving boat, Antarctica.

Frederique Olivier / Group of Adelie penguins (Pygoscelis adeliae) diving from the edge of the sea ice, Antarctica.

Ingo Arndt / Grizzly bear (Ursus arctos horribilis) silhouette, Lake Clark National Park, Alaska

Ingo Arndt / Coastal edge of Perito Moreno glacier, Patagonia, Argentina 2002

Bence Mate / Great egret (Ardea alba) group of five at water's edge, with very out of focus egret in foreground. Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary, February.

Jussi Murtosaari / European Dipper (Cinclus cinclus) on ice next to stream, winter, Finland. February.

Bence Mate / European otter (Lutra lutra) group with one shaking off water, Kiskunsagi National Park, Hungary, October.

Bence Mate / European otter (Lutra lutra) two at water's edge, one shaking off water, Kiskunsagi National Park, Pusztaszer, Hungary, October.

Bence Mate / European otter (Lutra lutra) group, with one shaking off water, Kiskunsagi National Park, Hungary, January.

Bence Mate / European otters (Lutra lutra) feeding at water?s edge with splashing water, Kiskunsagi National Park, Hungary, January.

Bence Mate / European otters (Lutra lutra) at water's edge, one shaking off water, Kiskunsagi National Park, Hungary, January.

Bence Mate / Two European otters (Lutra lutra) one shaking off water and the other feeding on fish, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. October.

Wim van den Heever / Black rhinoceros (Diceros bicornis) mother and calf having a drink at night with perfect reflections. Etosha National Park, Namibia. Taken with infrared camera.

Juan Carlos Munoz / Aerial view of cliffs at the edge of Lake Powell, near Page, Arizona, on the Utah border, USA, February 2015. Lake Powell is a reservoir on the Colorado River, and is the second largest man made lake...

Pedro Narra / Green turtle (Chelonia mydas) returning to see after egg laying, e to open sea after digging nest. Bissagos Islands, Guinea Bissau. Endangered species. 3rd Place in the SOS Especes Menacees / SOS End...

Claudio Contreras / Caribbean flamingo (Phoenicopterus ruber) adults guarding chick, Ria Lagartos Biosphere Reserve, Yucatan Peninsula Mexico, June. Bookplate.

Danny Green / Black-throated diver (Gavia arctica) on near waters edge, Finland, June.

Cyril Ruoso / South american sea lion (Otaria byronia) and American fur seal (Arctocephalus australis) hauled out on the shore of Punta Coles Reserve, Peru.

Franco Banfi / Walrus (Odobenus rosmarus) hauled out in shallow water, Spitsbergen, Svalbard Archipelago, Norway, Arctic Ocean. July.

George Sanker / American buffalo (Bison bison) with group of calves, Yellowstone National Park, Wyoming, USA. May.

George Sanker / Purple gallinule (Porphyrula martinica) in mangrove swamp. Everglades National Park, Florida, USA. March.

Ross Hoddinott / Ice on black volcanic sand beach with waves, Jokulsarlon, Southeast Iceland, February.

Juergen Freund / Leatherback turtle (Dermochelys coriacea) hatchlings running to the sea from nest. Jamursbamedi, West Papua, Irian Jaya, Indonesia.

Chris & Monique Fallows / King penguin (Aptenodytes patagonicus) colony at sunrise. Grytviken, South Georgia Island.

Nick Upton / Eurasian beaver (Castor fiber) entering the River Otter after release. Part of escaped population re-released to the wild following veterinary check ups. Taken on the second day of Beaver releases aft...

Andy Rouse / Bengal tiger (Panthera tigris tigris) female 'T19 Krishna' carrying 2 month cub, Ranthambhore National Park, India.

Jussi Murtosaari / Muskrat (Ondatra zibethicus) Espoo, Uusimaa, Finland, May. Introduced species.

Andy Rouse / Gentoo penguin (Pygoscelis papua) jumping onto beach, Carcass Island, Falkland Islands.

Steven Kazlowski / Polar bear (Ursus maritimus) sow with two juveniles walk along the ice edge during autumn freeze up, Beaufort Sea, off Arctic coast, Alaska

Terry Whittaker / Pine marten (Martes martes) walking along edge of water, orange glow in sky behind from the lights of Inverness. Black Isle, Scotland, UK, September. Photographed by camera trap.

Terry Whittaker / Water vole (Arvicola amphibius) feeding at edge of water, Kent, UK, December.

Gabriel Rojo / Monk parakeet (Myiopsitta monachus) Calden Forest , La Pampa , Argentina

Marie Read / Flock of White ibis (Eudocimus albus) in breeding plumage, at rookery on water's edge of the mangrove-covered island, Tampa Bay, Florida, USA, March

Alex Hyde / Takob-Akob Falls plunging 38 metres through the rainforest. Southern plateau edge, Maliau Basin, Sabah, Borneo, May 2011.

George Sanker / American Buffalo or Bison (Bison bison) group with calves, Yellowstone National Park, Wyoming, USA, May

Floris van Breugel / Two Guanacos (Lama guanicoe) at edge of lake with Cuernos del Paine beyond. Torres del Paine National Park, Chile, June 2014.

Nick Garbutt / Yellow Anaconda (Eunectes notaeus) in vegetation at the edge of the Paraguay River, Taiama Reserve, western Pantanal, Brazil, South America.

Frederique Olivier / Adelie penguins (Pygoscelis adeliae) preening at edge of ice, Antarctica.

Ben Cranke / Jaguar (Panthera onca) drinking from the river's edge, Mato Grosso, Pantanal, Brazil. August.

Hougaard Malan / Large wave crashing against rock shelf. Luphathana, Pondoland, Eastern Cape, South Africa. June 2012.

Hougaard Malan / Rock formations on Anse Source d'Argent beach. La Digue Island, Seychelles. November, 2012.

Markus Varesvuo / Red-throated Diver (Gavia stellata) portrait at edge of lake, Vaala, Finland, June

Anup Shah / Japanese Macaque (Macaca fuscata) baby sitting on the edge of thermal hotspring pool. Jigokudani Yean-Koen National Park, Japan, February.

Eric Baccega / Black flat-coated retriever dog splashing in water and retrieving stick (Canis familiaris)

Jean E. Roche / Beaver (Castor fiber) on beach, Camargue, France, November.

Charlie Summers / Two juvenile Brown Bear siblings (Ursus arctos) look for food on the banks of the Anan Creek lagoon, Alaska, July.

Charlie Summers / Black Bear (Ursus americanus) hunting for spawning Salmon during low tide, Neets Creek estuary, Alaska, July.

Ben Cranke / Leopard seal (Hydrurga leptonyx) chasing Gentoo Penguin (Pygoscelis papua) into shore, Cuverville Island, Antarctic Peninsula, Antarctica

Graham Eaton,Graham Eaton / A hatchling Leatherback Turtle (Dermochelys coriacea) nearing the waters edge, Cayenne, French Guiana

Claudio Contreras,Claudio Contreras / Women gathering mollusc eggs for sale at market, Bilang Bilangang Island, Danajon Bank, Central Visayas, Philippines, April 2013

Eric Baccega,Eric Baccega / Female Grizzly bear (Ursus arctos horribilis) standing up in alert and looking around, while feeding on sedge, Khutzeymateen Grizzly Bear Sanctuary, British Columbia, Canada, June.

Eric Baccega / Female grizly bear (Ursus arctos horribilis) crossing water, followed by her two cubs, Khutzeymateen Grizzly Bear Sanctuary, British Columbia, Canada, June.

Ben Cranke,Ben Cranke / Flock of Hooded Cranes (Grus monacha) Kyushu, Japan

Bence Mate / Portrait of male Hawfinch (Coccothraustes coccothraustes) at water's edge, with reflection, Pusztaszer, Kiskunsagi National Park, Hungary

Bence Mate / European starlings (Sturnus vulgaris) taking off from waters edge after bathing, Pusztaszer, Kiskunsagi National Park, Hungary

Bence Mate / Portrait of female Sparrowhawk (Accipiter nisus) drinking at waters edge, Pusztaszer, Kiskunsagi National Park, Hungary

Bence Mate / Head portrait of Red-eyed tree frog (Agalychnis callidryas) at waters edge, with reflection, Santa Rita, Costa Rica

Bence Mate / Male Chaffinch (Fringilla coelebs) at waters edge with reflection, Pusztaszer, Kiskunsagi National Park, Hungary

Juergen Freund / Sarus Cranes (Grus antigone) Atherton Tablelands, Queensland, Australia

Igor Shpilenok,Igor Shpilenok / Large male Reindeer (Rangifer tarandus) standing in shallow waters of the Kronotsky lagoon, away from biting insects. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, July.

Igor Shpilenok,Igor Shpilenok / Red Fox (Vulpes vulpes) and snow bank reflected in river. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, February.

Igor Shpilenok,Igor Shpilenok / Kamchatka Brown Bear (Ursus arctos beringianus) on the Pacific coast of Kamchatka. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, July.

Sven Zacek,Sven Zacek / Waves along the Baltic Sea coast of Northern Estonia. January 2012.

David Pattyn / Giant otter (Pteronura brasiliensis) running at the edge of a river while playing with a family member, Rio Tres Irmaos, Pantanal, Brazil

David Pattyn / Spectacled caiman (Caiman yacare) walking on a sandy shore at the edge of a river at night, Pantanal, Brazil

Nick Garbutt / Gulik Falls, edge of southern plateau, Maliau Basin, Sabah's 'Lost World', Borneo (digitally stitched image)

George Sanker / Coyote (Canis latrans) standing on rocks at water's edge, sniffing, Yellowstone NP, Wyoming, USA, October

Rolf Nussbaumer / Black-necked stilt (Himantopus mexicanus) pair displaying, Dinero, Lake Corpus Christi, South Texas, USA.

Inaki Relanzon / Rocks at water edge with reflection and Water crowfoot (Ranunculus peltatus) flowering, National Park Los Barruecos, Malpartida de Caceres, Spain, March 2011

Chadden Hunter / Filming on the Antarctic sea-ice at the edge of a small hole. A cameraman gets a shock when a Killer whale (Orcinus orca) mother and calf explode out of the water in front of his face. Taken on locat...

Chadden Hunter / King penguins (Aptenodytes patagonicus) crossing water to reach breeding site, South Georgia. Taken on location for BBC Frozen Planet series, 2008

Sven Zacek / Waves washing up a beach on the Baltic coast of Estonia under sunset lit clouds. Europe, August 2011.

Ernie Janes / Gulls on the beach at sunset, The Wash, Hunstanton, Norfolk, UK, September 2011

Kathryn Jeffs / Cliff at edge of tabular iceberg, Antarctica, February 2009, Taken on location for BBC Frozen Planet series

Steven Kazlowski / Polar bear (Ursus maritimus) curious cub sits up on its hind legs and tries to balance itself, along Bernard Spit in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October

Steven Kazlowski / Polar bear (Ursus maritimus) curious cub sits up on its hind legs, paw raised, and tries to balance itself, along Bernard Spit in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska, US...

Graham Eaton / Leatherback Turtle (Dermochelys coriacea) hatchling crossing a beach to get to the sea. Cayenne, French Guiana, July.

Ross Hoddinott / 2020VISION / Emperor dragonfly {Anax imperator} chrysalis shell by water's edge, Denmark Farm, Wales, UK. June

Ernie Janes / Snowy egret (Egretta thula) standing behind fisherman on Fort Myers beach, Florida, USA

Eric Baccega / King Eider (Somateria spectabilis) flying low over water. Floe edge, Arctic Bay, Nunavut, Canada, April.

Eric Baccega / Melting ice at Floe Edge, Arctic Bay, Baffin Island, Nunavut, Canada, April 2009.

Eric Baccega / Melting ice under expansive clouds. Floe Edge, Arctic Bay, Baffin Island, Nunavut, Canada, April 2009.

Inaki Relanzon / Woman and girl fishing on the beach. Morondava, Madagascar, Africa.

Peter Lewis / A view along Chesil Beach towards the Golden Cap, with Lyme Regis in the distance. Dorset, UK, October.

Sergey Gorshkov / Silhouette of Kamchatka Brown bear (Ursus arctos beringianus) ) beside Lake Kuril at dawn, Kamchatka, Far east Russia, August 2008

Orsolya Haarberg / Spotted redshank (Tringa erythropus) at shallow water in snow, Ovre-Pasvik National Park, Norway

Orsolya Haarberg / Eurasian beaver (Castor fiber) demonstrating stick display, territorial behaviour, Telemark, Norway, June

Shattil & Rozinski / Kelp floating on water at the edge of the Great Bear Rainforest, British Columbia, Canada, September

David Noton / James' flamingos (Phoenicoparrus jamesi) on a laguna in the remote region of high desert, altiplano and volcanoes near Tapaquilcha, Bolivia, December 2009

Bernard Castelein / Cinereous / European Black Vulture (Aegypius monachus) in dispute with an Eurasian Griffon Vulture (Gyps fulvus), alongside a Himalayan Griffon (Gyps himalayensis) and Long-billed Vulture (Gyps indicu...

Oriol Alamany / Laguna Torre and Grande glacier below Cerro Torre (3102 m), Los Glaciares National Park, Andes, Patagonia, Argentina, January 2006