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

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

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

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...

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

Mark Carwardine / Looking down on Sumatran rhino (Dicerorhinus sumatrensis) walking through stream. Captive-Sumatran Rhino Sanctuary, within Way Kambas National Park, Lampung Province, southern Sumatra, Indonesia

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

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) juvenile female 'Bokata' aged 6 years approaching a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2...

Graham Eaton / A split level image of a small mountain stream. Cwm Idwal, Snowdonia, Wales, September 2011.

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

Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) reaching up to the surface to breathe, Japan, August

Yukihiro Fukuda / Japanese giant salamander hunting at night in a river, Japan, May

Yukihiro Fukuda / Two male Japanese giant salamanders (Andrias japonicus) fertilizing the eggs of a female, Japan, September

Yukihiro Fukuda / Male Japanese giant salamander (Andria japonicus) emerging from a nest hole in order to breathe, Japan, August

Mark Hamblin / Grey heron (Ardea cinerea) beside drainage ditch at sunrise, Cairngorms National Park, Scotland, UK. Highly commended, 'Habitat' series category, British Wildlife Photography Awards (BWPA) competition...

Eric Baccega / Aerial view of Devon Island, Nunavut, Canada, June 2012.

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

Mark Hamblin / 2020VISION / Stream running through wooded gorge. Abernethy NNR, Cairngorms National Park, Scotland, UK, September 2011. Did you know? Abernethy Forest is the largest remnant of the Ancient Caledonian Forest in...

Fergus Gill / 2020VISION / Dipper (Cinclus cinclus) on rock in stream. Perthshire, Scotland, May.

Fergus Gill / 2020VISION / Dipper (Cinclus cinclus) on rock in stream. Perthshire, Scotland, May.

Fergus Gill / 2020VISION / Dipper (Cinclus cinclus) on rock in stream. Perthshire, Scotland, May.

Graham Eaton / An underwater view of a woodland stream, River Glaslyn, Snowdonia NP, Gwynedd, Wales, UK, May

Graham Eaton / A low angle view of a waterfall, from within a mountain stream, Ogwen Cottage, Snowdonia NP, Gwynedd, Wales, UK, February

Graham Eaton / Underwater landscape within a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / View looking up a waterfall from within a stream, Snowdonia NP, Gwynedd Wales, UK, December

Graham Eaton / A split-level image of a mountain stream, in autumn, with water droplets on lens, Nant Ffrancon Valley, Snowdonia NP, Gwynedd, Wales, UK, October

Graham Eaton / Underwater view of a rapidly flowing mountain stream, Snowdonia NP, Gwynedd, Wales, UK, November

Graham Eaton / A split-level view through a small waterfall, Llanberis, Snowdonia NP, Gwynedd, Wales, UK, July

Ben Hall / 2020VISION / Stock Ghyll waterfall in autumn, Lake District NP, Cumbria, England, UK, November

Ben Hall / 2020VISION / Grey heron (Ardea cinerea) standing on rock at the base of a waterfall, Lake District NP, Cumbria, England, UK, November

Ben Hall / 2020VISION / Stock Ghyll waterfall in autumn, with motion blur from wind, Lake District NP, Cumbria, England, UK, November

Mark Hamblin / 2020VISION / View looking towards Marsco, with stormy sky and the River Sligachan in foreground, Isle of Skye, Inner Hebrides, Scotland, UK, November 2010

Mark Hamblin / 2020VISION / Silhouettes of the Red Cullin at dawn, with stream in the foreground, Isle of Skye, Inner Hebrides, Scotland, UK, November 2010

Konrad Wothe / Orang-Utan (Pongo pygmaeus) lowering itself from a branch head-first into water. Gunung Leuser National Park, Sumatra.

Nick Garbutt / Takob-Akob Falls, Maliau Basin, Sabah's 'Lost World', Borneo.

Mark Hamblin / 2020VISION / Upland stream flowing into Loch Avon, Glen Avon, Cairngorms National Park, Highlands, Scotland, UK, August 2010

Mark Hamblin / 2020VISION / Upland stream flowing into Loch Avon, Glen Avon, Cairngorms National Park, Highlands, Scotland, UK, August 2010

Mark Hamblin / 2020VISION / Upland stream flowing into Loch Avon, Glen Avon, Cairngorms National Park, Highlands, Scotland, UK, August. 2020VISION Book Plate.

Mark Hamblin / 2020VISION / Boy (aged 17) jumping across upland stream, Cairngorms National Park, Highlands, Scotland, UK, August, Model released. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? More than a million p...

Mark Hamblin / 2020VISION / Boy (aged 17) jumping across upland stream, Cairngorms National Park, Highlands, Scotland, UK, August, Model released

Mark Hamblin / 2020VISION / Boy (aged 17) jumping across upland stream, Cairngorms National Park, Highlands, Scotland, UK, August, Model released

Inaki Relanzon / Springs and waterfalls of Yaga River, in the Escuain Canyon and Valley. Ordesa National Park, Pyrenees, Spain, June 2011.

Klaus Echle / Kingfisher (Alcedo atthis) flying with fish to branch over snow banked stream. Black Forest, Germany, January.

Bernard Castelein / Hog Deer (Cervus / Axis / Hyelaphus porcinus) crossing a stream. Kaziranga National Park, Assam, India, February.

Matthew Maran / Waterfall on the the Darling River with a fallen tree as a bridge over the waters. West Coast Trail, Pacific Rim National Park Reserve, west coast of Vancouver Island, Canada, September 2010.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective showing crab beneath and fluvial habitat. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) brandishing claws in defensive posture. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective showing crab beneath and fluvial habitat. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective of underwater and habitat. Foreste Casentinesi National Park, Italy, July.

Jouan & Rius / Tropical rainforest interior with stream, Bako NP, Borneo, Sarawak, Malaysia

Charlie Summers / Rockhopper Penguin (Eudyptes chrysocome) bathing in freshwater stream, Saunders Island, Falkland Islands, December

Charlie Summers / Rockhopper Penguin (Eudyptes chrysocome) bathing in freshwater stream, Saunders Island, Falkland Islands, December

Nick Upton / Common / Long Water Measurer (Hydrometra stagnorum) walking on stream surface, with reflections, Wiltshire, UK, April.

Graham Eaton / An underwater view of a mountain stream showing internal reflections on the water surface, Snowdonia NP, Gwynedd, Wales, UK, December 2009.

Nick Garbutt / Montane rainforest understorey along a stream with dominant Pandanus sp. Vohiparara, Ranomafana National Park, Madagascar. (digitally stitched image)

Jouan & Rius / Cascade flowing in Hancock gorge, Karijini National Park, Pilbara, Western Australia. August 2009

Tim Laman / Two young children (brother and sister-model released) collecting water to drink from a river in tropical rainforest, Borneo. July 2007

Wild Wonders of Europe / Wothe / Okna river, Morske Oko Reserve, Vihorlat Mountains, East Slovakia, Europe, June 2008

Wild Wonders of Europe / Popp-Hackner / Stream, Ruisseau du Cot, near to Cirque de Troumouse, Pyrenes, France, October 2008

Wild Wonders of Europe / Radisics / Water falling over basalt stones, Paul de Serra mountains, Madeira, March 2009

Wild Wonders of Europe / Elander / European dipper (Cinclus cinclus) on rock by stream with food in beak, Vall DIncles, Andorra, June 2009

Ross Hoddinott / Porth Nanvan SSSI (Cot Valley) looking toward the Brisons, Cornwall, UK. Evening light. June 2009.

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) flowering by a mountain stream, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) in flower by a mountain stream, Liechtenstein, June 2009

Wild Wonders of Europe / D'Amicis / Mountain stream with fallen trees crossing pristine forest, Kouprova valley, Western Tatras, Carpathian Mountains, Slovakia, June 2009

Jack Dykinga / Tributary stream pouring into the Snake River, dawn, Caribou National Forest, Idaho, USA

Wild Wonders of Europe / López / Aerial view of forest with a stream flowing through it, Kemeri National Park, Latvia, June 2009

Wild Wonders of Europe / Smit / Stream flowing through cave, Djerdap National Park, Serbia, June 2009

Wild Wonders of Europe / Tønning / Halerbach / Haupeschbach, a small stream flowing past moss covered rocks in forest, Beaufort, Mullerthal, Luxembourg, May 2009

Wild Wonders of Europe / Tønning / Halerbach / Haupeschbach flowing between large moss covered rocks with Male ferns (Dryopteris filix mas) growing, Beaufort, Mullerthal, Luxembourg, May 2009

Wild Wonders of Europe / Tønning / Reflections in stream near the Schiessentmpel waterfall, Consdorf, Mullerthal, Luxembourg, May 2009

Wild Wonders of Europe / Munier / Small stream flowing through snow covered landscape, Forollhogna National Park, Norway, September 2008

Wild Wonders of Europe / Popp-Ha / Ruisseau du Cot (stream) near Cirque de Troumouse, Pyrenees, France, October 2008

Wild Wonders of Europe / Ruiz / Mezni Potok / Stream flowing under a rock, Rynartice, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, November 2008

Wild Wonders of Europe / Ruiz / Sucha Kamenice / Creek in wood covered in fallen leaves, Hrensko, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, November 2008

Wild Wonders of Europe / Ruiz / Sucha Kamenice / Creek in forest covered in fallen leaves, Hrensko, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, November 2008

Wild Wonders of Europe / Ruiz / Mezni Potok / Stream flowing underneath a rock, Rynartice, Ceske Svycarsko / Bohemian Switzerland National Park, Czech Republic, November 2008