Bence Mate / Great egrets (Ardea alba) and Grey heron (Ardea cinerea) squabbling over fish, with some in flight. Blurred motion photograph, Lake Csaj, Pusztaszer, Hungary. February.

Bence Mate / Greenfinches (Carduelis chloris) and House sparrows (Passer domesticus) blurred long exposure photograph, Hungary, February.

Linda Pitkin / 2020VISION / Brown trout (Salmo trutta) in turbulent water at a weir, River Ettick, Selkirkshire, Scotland, UK, October

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

Michel Roggo / Turbulent waters in Verzasca River, Tessin, Switzerland, October

Michel Roggo / Turbulent water in Verzasca river, Ticino, Switzerland, February

Michel Roggo / Underwater landscape in Verzasca River, Ticino, Switzerland, September

Michel Roggo / Underwater landscape beneath waterfall, Baca River, Slovenia, June

Jeff Foott / Top of Sunwapta Falls, Sunwapta River, Jasper National Park, Alberta, Canada. September.

Andy Trowbridge / New Zealand Blue duck (Hymenolaimus malacorhynchos) feeding in fast / turbulent water. Hokitika, West Coast, South Island, New Zealand. September. Endangered Species.

Ashley Cooper / Splashes in pool of meltwater from the Russell Glacier, Greenland, July 2008.

Ashley Cooper / Meltwater from the Russell Glacier, Greenland, July 2008.

Loic Poidevin / Dalmatian pelicans (Pelecanus crispus) squabbling over fish, Lake Kerkini, Greece, February.

Pal Hermansen / Eider duck (Somateria mollissima) under water, diving for food, Trondelag, Norway. March. Blurred motion in image. Winner of Artists on Wings (Birds) category of Glaenzlichter Awards 2017

Alex Mustard / Portrait of Sally lightfoot crab (Grapsus grapsus) in the surf. Floreana Island, Galapagos Islands, Ecuador. Tropical East Pacific Ocean.

Kirkendall-Spring / Statues on the walls of Wat Arun, Bangkok, Thailand, September 2014.

Kirkendall-Spring / Statues on the walls of Wat Arun, Bangkok, Thailand, September 2014.

Dong Lei / Himalayan griffon vultures (Gyps himalayensis) flock scavenging, Ruoergai National Nature Reserve, Sichuan Province, China, January.

Jussi Murtosaari / White-throated dipper (Cinclus cinclus) winter with river flooding, Kuusa, Laukaa, Keski-Suomi, Lansi- ja Sisa-Suomi / Central and Western Finland, Finland. January

Jack Dykinga / Snow geese (Anser caerulescens) flock taking off with a setting moon over the Chupadera Mountains in the background. Snow geese and sandhill cranes (Grus canadensis) yet to leave remain on the ice cov...

Nick Garbutt / Straw-coloured fruit bats (Eidolon helvum) returning to daytime roost in misty swamp forest just before sunrise. Kasanka National Park, Zambia.

Billy Black / View of turbulent waters from the Morris Yachts M52 at the Vineyard Cup Regatta, Vineyard Haven Martha's Vineyard, Massachusetts, USA, July 2012.

Will Burrard-Lucas / Mass of Straw-coloured fruit bat (Eidolon helvum) in flight in habitat, Kasanka National Park, Zambia.

Florian Möllers / Black-headed Gulls (Larus ridibundus) abstract of group in flight, Berlin Zoological Garden, Berlin Zoo, Germany. February.

Danny Green / Harlequin duck (Histrionicus histrionicus) male on a large boulder in the fast flowing and turbulent waters of the Laxa River, Iceland, May. Bookplate from Danny Green's 'The Long Journey North'

David Tipling / Snow Geese (Chen caerulescens) taking off at dawn Bosque del Apache, New Mexico, USA, winter

Graham Eaton / The underwater landscape within Afon Nant Peris, a mountain stream, Llanberis, Snowdonia NP, Gwynedd,Wales, UK, March

Graham Eaton / An underwater view of a mountain stream, showing water turbulence around rocks, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / View of the underwater landscape within a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK

Graham Eaton / An underwater view of a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK, December

Nick Upton / Turbulent water of the Soca river carving through karst limestone rocks at Velika Korita gorge, with overhanging vegetation, Julian Alps, Triglav National Park, Slovenia, July 2010.

Andrew Parkinson / Sanderling (Calidris alba) flock in flight over a turbulent North Sea. Norfolk, UK, October (non-ex)

Wild Wonders of Europe / Biancarelli / Turbulent water flowing over moss covered rocks, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Turbulent water, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Turbulent water, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Pitkin / Rock encrusted with colourful sponges, and algae, in turbulent seas, Cerbicale Islands, Corsica, France, September 2008

Adam Burton / Rocky Pondfield Cove on an incoming tide, Dorset, England. Worbarrow Bay, Jurassic Coast World Heritage Site.

Michel Roggo / Turbulent water in Saane river tributary, Gruyère, Fribourg, Switzerland, February

Michel Roggo / Turbulent water in Saane river tributary, Gruyère, Fribourg, Switzerland, February

Michel Roggo / Underwater landscape in Hongrin River with ice on the river bed and surface in winter. Fribourg, Gruyère, Switzerland, December

Michel Roggo / Underwater landscape in Hongrin River with ice on the river bed and surface in winter. Fribourg, Gruyère, Switzerland, December

Michel Roggo / Underwater landscape with turbulence bubbles in Verzasca River, Tessin, Switzerland, October

Michel Roggo / Turbulent waters in Verzasca River, Tessin, Switzerland, October

Michel Roggo / Turbulent waters in Verzasca River, Tessin, Switzerland, October

Michel Roggo / Turbulent waters in Verzasca River, Tessin, Switzerland, October

Michel Roggo / Underwater landscape with turbulent water in mountain creek, Fribourg, Swiss Alps, Switzerland, April