Alex Mustard / 2020VISION / Silhouette of Common toad (Bufo bufo) swimming in River Orchy, Highlands, Scotland, UK, April

George Sanker / Ellis River high in White Mountain National Forest. New Hampshire, October 2012.

Gavin Hellier / Women in colourful Saris collecting water, across the Jumna (Yamuna) river from Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India, 2011, model released

Gavin Hellier / Elevated view over the Bosphorus and Sultanahmet from the Galata Tower in Istanbul, Turkey 2008

Gavin Hellier / New Pudong skyline, looking across the Huangpu River from the Bund, Shanghai, China 2010. No release available.

Gavin Hellier / Shanghai night skyline, the view along Huangpu River and the Bund, Shanghai, China 2010. No release available.

Gavin Hellier / Looking down on St. Vitus Cathedral, Charles Bridge, UNESCO World Heritage Site, and the Castle District illuminated at night, Prague, Czech Republic 2011. No release available.

Gavin Hellier / Looking down on St. Vitus Cathedral, Charles Bridge, UNESCO World Heritage Site, and the Castle District, Prague, Czech Republic 2011. No release available.

Gavin Hellier / Elevated view of mid-town Manhattan, New York City, USA 2009. No release available.

Gavin Hellier / Luxury cruise liner infront of Midtown Manhattan across the Hudson River, New York, USA October 2011. No release available.

Richard Steel / 2020VISION / Dipper (Cinclus cinclus) standing in stream, Clwyd, Wales, UK, February.

Richard Steel / 2020VISION / Female Goosander (Mergus merganser) drying feathers, Gwynedd, Wales, UK, January.

Richard Steel / 2020VISION / Male Goosander (Mergus merganser) flying over water, Gwynedd, Wales, UK, February.

Fergus Gill / 2020VISION / Male Goldeneye (Bucephala clangula), Hogganfield Loch, Glasgow, Scotland, UK, February. Did you know? Goldeneyes forest ducks, which nest in trees.

Niall Benvie / Waterfalls in woodland. Craigengillan Estate, Dalmellington, Ayrshire, October.

Peter Cairns / 2020VISION / River Affric flowing through a rocky gorge, Glen Affric National Nature Reserve, Scotland, UK, October 2012.

Peter Cairns / 2020VISION / View over the River Spey at sunrise, Cairngorms National Park, Scotland, UK, May.

Peter Cairns / 2020VISION / Osprey (Pandion haliaetus) perched on branch, holding stick in its foot, Cairngorms National Park, Scotland, UK, July.

Peter Cairns / 2020VISION / Waterfall, Fairy Glen RSPB reserve, Inverness-shire, Scotland, UK, May.

Peter Cairns / 2020VISION / View of a waterfall with a fallen tree in the foreground, Fairy Glen RSPB reserve, Inverness-shire, Scotland, UK, July.

Peter Cairns / 2020VISION / Osprey (Pandion haliaetus) fishing, Cairngorms National Park, Scotland, UK, July.

Peter Cairns / 2020VISION / Osprey (Pandion haliaetus) at surface of a loch after diving for a fish, Cairngorms National Park, Scotland, UK, July.

Peter Cairns / 2020VISION / Osprey (Pandion haliaetus) with fish prey on feeding perch, Cairngorms National Park, Scotland, UK, July.

Peter Cairns / 2020VISION / Osprey (Pandion haliaetus) eating fish prey, Cairngorms National Park, Scotland, UK, July.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) juvenile sitting on a tree, wet from playing in the river, wide angle perspective, Tangkoko National Park, Sulawesi, Indonesia.

Wild Wonders of Europe / Widstrand / Pool Frog (Rana lessonae) sitting on White lily pad, Danube delta rewilding area, Romania

Linda Pitkin / 2020VISION / Water-crowfoot (Ranunculus fluitans subsp. penicillatus) flowering underwater, Cumbria, England, UK, September. Did you know? The latin name for this genus 'Ranunculus' comes from the Latin for 'Litte...

Linda Pitkin / 2020VISION / Split-level view of the River Leith, showing Water-crowfoot (Ranunculus fluitans subsp. penicillatus) growing underwater, Cumbria, England, UK, September. Did you know? Cumbria is one of the least den...

Linda Pitkin / 2020VISION / Fisheries assistant Stephanie Kershaw and volunteer John Dumont from the Eden Rivers Trust searching for White clawed crayfish (Austropotamobius pallipes) as part of a capture and release conservation...

Linda Pitkin / 2020VISION / White clawed crayfish (Austropotamobius pallipes) on river bed, viewed underwater, River Leith, Cumbria, England, UK, September 2012.

Linda Pitkin / 2020VISION / White clawed crayfish (Austropotamobius pallipes) underwater on riverbed, showing defensive posture, River Leith, Cumbria, England, UK, September 2012. Did you know? White clawed crayfish can live fo...

Linda Pitkin / 2020VISION / White clawed crayfish (Austropotamobius pallipes) underwater on riverbed, River Leith, Cumbria, England, UK, September 2012.

Linda Pitkin / 2020VISION / Brown trout (Salmo trutta) fry on river bed, Cumbria, England, UK, September.

Linda Pitkin / 2020VISION / Fisheries assistant Stephanie Kershaw and volunteer John Dumont at the Eden Rivers Trust electrofishing for juvenile Atlantic salmon (Salmo salar) and Brown trout (Salmo trutta) as part of a capture a...

Luke Massey / 2020VISION / Little grebe (Tachybaptus ruficollis) on lake, Surrey, England, UK, April.

Ross Hoddinott / 2020VISION / Tarr Steps, medieval clapper bridge crossing the River Barle, Exmoor National Park, Somerset, UK. May 2012

Ross Hoddinott / 2020VISION / River Exe, near Winsford, showing river correctly fenced to stop cattle from polluting the river, or eroding the river banks. Healthy example of river habitat. Exmoor National Park, Somerset, UK. May...

Ross Hoddinott / 2020VISION / River Stour with early morning mist and frost, near Wimborne Minster, Dorset, UK. April 2012. Did you know? There are five different River Stours in the UK.

Ross Hoddinott / 2020VISION / Large red damselfly {Pyrrhosoma nymphula} emerging from nymphal case, Cornwall, UK. April

Ross Hoddinott / 2020VISION / School children carrying equipment to release salmon fry in the River Haddeo and to do invertebrate kick samples with Westcountry Rivers Trust (WRT) warden. Bury, Exmoor National Park, Somerset, UK. M...

Ross Hoddinott / 2020VISION / School child releases salmon fry in the River Haddeo, with Westcountry Rivers Trust (WRT) warden. Bury, Exmoor National Park, Somerset, UK. May 2012. Editorial use only

Ross Hoddinott / 2020VISION / Common frog (Rana temporaria) portrait, close-up of eye, Cornwall, UK. January. Did you know? Female Common frogs can lay up to 2000 eggs.

Ross Hoddinott / 2020VISION / Common frog {Rana temporaria}, backlit portrait, Cornwall, UK. January 2012.

Terry Whittaker / 2020VISION / Water vole (Arvicola amphibius) eating, Kent, England, UK, July

Terry Whittaker / 2020VISION / Two Water voles (Arvicola amphibius) eating, Kent, England, UK, July

Terry Whittaker / 2020VISION / Water vole (Arvicola amphibius) eating, Kent, England, UK, July

Ross Hoddinott / 2020VISION / Golitha Falls, River Fowey flowing through wooded valley with moss covered trees, Nr St Cleer, Cornwall, UK, May 2012

Mark Carwardine / Amazon river dolphin, pink river dolphin or boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) - wild animal breaching Threatened species (IUCN Red List)

Mark Carwardine / Amazon / Pink river dolphin / Boto {Inia geoffrensis} Rio Negro, Amazon, Brazil Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal breaching, Threatened species (IUCN Red List)

Mark Carwardine / Amazon / Pink river dolphin / Boto {Inia geoffrensis} breaching, Rio Negro, Amazon, Brazil Threatened species (IUCN Red List)

Mark Carwardine / Amazon river dolphin, pink river dolphin or boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) - two wild animals fighting over fish Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal underwater in tannin rich river, Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal underwater in tannin rich river, Threatened species (IUCN Red List)

Mark Carwardine / Amazon / pink river dolphin / boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) wild animal underwater in tannin rich river, Threatened species (IUCN Red List)

Mark Carwardine / Yangtze river dolphin {Lipotes vexillifer} captive, Wuhan, China, crit endangered

Enrique Lopez-Tapia / Man and veiled woman taking a photograph of the River Ganges at sunset, Rajshahi. Bangladesh June 2012. No release available.

Enrique Lopez-Tapia / Men on a wooden boat who use smooth-coated otters (Lutra perspicillata) for traditional fishing practices, the Sundarbans National Park, the largest mangrove swamp in the world. Bangladesh. UNESCO Wo...

Yukihiro Fukuda / Japanese giant salamanders (Andrias japonicus) males in a burrow at the time of spawning, Kurokawa River, Hyougo, Japan, September

Yuri Shibnev / Wild Amur leopard (Panthera pardus orientalis) crossing a fallen tree over a river, Kedrovaya, Pad Reserve, Far East Russia 1987

Oriol Alamany / Nigel Creek with conifer forest at dusk, Banff National Park, Rocky Mountains, Alberta, Canada

Christophe Courteau / Giant Otter swimming (Pteronura braziliensis) Pixiam river, Pantanal, Mato Grosso, Brazil.

Christophe Courteau / Local people moving on mokoros, traditional boats of the Okavango delta. Botswana.

Jack Dykinga / Matkatamiba Canyon with its Muave limestone scoured by erosion. Grand Canyon National Park, Arizona. May 2012.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Tembo' aged 4 years crossing a river in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' carrying her infant 'Sopo' aged 18 months on her back crossing a river in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cent...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years drinking from a river while sub-adult female 'Mosoko' aged 8 years crosses bi-pedally, Bai Hokou, Dza...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years drinking from a river watched by sub-adult female 'Mosoko' aged 8 years and juvenile male 'Mobangi' a...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years approaching a river while sub-adult female 'Mosoko' aged 8 years and juvenile male 'Mobangi' aged 5 y...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile female 'Bokata' aged 6 years walking bi-pedally to cross a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Repu...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years using her hand to scoop water from a river to drink, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cen...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile female 'Bokata' aged 6 years walking bi-pedally to cross a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Repu...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Tembo' aged 4 years crossing a river bi-pedally while dominant male silverback 'Makumba' aged 32 years and juvenile male 'Mobangi' aged...

Anup Shah / African Forest elephant (Loxodonta africana cyclotis) herd drinking and wallowing in a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years walking bi-pedally across a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central Afr...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years sitting by a river in forest interior, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years walking bi-pedally across a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Repub...

Anup Shah / Forest buffalo (Syncerus caffer nanus) standing and urinating in a river running through Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile female 'Bokata' aged 6 years approaching a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile female 'Bokata' aged 6 years feeding on sedge grasses beside a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Tembo' aged 4 years crossing a river bi-pedally, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. Decem...

Graham Eaton / Dendritic drainage of the land at the end of the rainy season, a view from the air. Northern Kenya, Africa, November.

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) eating the eggs of another salamander, Japan, August

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August

Yukihiro Fukuda / Male Japanese giant salamander (Andrias japonicus) in river, Japan, August

Yukihiro Fukuda / Male Japanese giant salamander (Andrias japonicus) protecting his eggs inside his nest, Japan, October

Yukihiro Fukuda / Male Japanese giant salamander (Andrias japonicus) protecting his eggs inside his nest, Japan, September

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) eggs, Japan, September

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) at the entrance to its nest, raising its head to the surface, Japan, August

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) in river, Japan, March

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

Juan Carlos Munoz / Aerial view over subtropical mangrove wetlands of the Everglades National Park. Florida, USA, February 2012.

Doc White / Amazon river dolphin (Inia geoffrensis), Rio Negro, Amazonia, Brazil

Doc White / Amazon river dolphin (Inia geoffrensis), Rio Negro, Amazonia, Brazil

John Waters / Swans (Cygnus sp) on a large water channel at sunrise with mist on the low lying pastures of Tadham Moor, Somerset Levels, Somerset, UK, March 2012