Shane Gross / Caribbean reef shark (Carcharhinus perezi), two from below, one close up. Caribbean Sea off Gardens of the Queen National Park, Cuba.

Jordi Chias / Iceberg, Antarctic Peninsula, Antarctica.

Terry Whittaker / Man being lowered down a cliff to collect seabird eggs, including those of Common guillemots (Uria aalge). Camera attached to helmet, Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland, May.

Terry Whittaker / Man being lowered down a cliff to collect seabird eggs, including those of Common guillemots (Uria aalge). Camera attached to helmet, Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland, May.

Terry Whittaker / Man being lowered down a cliff to collect seabird eggs, including those of Common guillemots (Uria aalge). Camera attached to helmet, Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland, May.

Terry Whittaker / Man being lowered down a cliff to collect seabird eggs, including those of Common guillemots (Uria aalge). Camera attached to helmet, Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland, May.

Sven Zacek / Black woodpecker (Dryocopus martius) feeding chicks at nest in tree trunk viewed from above, Valga County, Estonia. May. Highly commended in the GDT European Wildlife Photographer of the Year Awards 2...

Cyril Ruoso / Mute swan (Cygnus olor) feeding underwater, Burgundy, France, March.

Cyril Ruoso / Mute swan (Cygnus olor) feeding underwater, Burgundy, France, November.

Cyril Ruoso / Mute swan (Cygnus olor) feeding along riverbed, viewed underwater, Burgundy, France. November.

Yashpal Rathore / Demoiselle crane (Anthropoides virgo) low angle fisheye perspective of feeding cranes. Khichan, Western Rajasthan, India. February, 2015

Sandra Bartocha / European beech tree (Fagus sylvatica). in woodland, Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. October 2015.

Lucas Bustamante / Anthony's poison-frog (Epipedobates anthonyi) seen through hole in leaf. Buenaventura Reserve, El Oro, Ecuador.

Bence Mate / Group of Little egrets (Egretta garzetta) displaying its ornamental feathers, Lake Csaj, Kiskunsagi National Park, Hungary. February.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) low angle perspective of open bills whilst feeding, Lake Kerkini, Greece, February.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) low angle perspective of open bills whilst feeding, Lake Kerkini, Greece, February.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) low angle perspective of open bills whilst feeding, Lake Kerkini, Greece, February.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) low angle perspective of open bills whilst feeding, Lake Kerkini, Greece, February.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) low angle perspective of open bills whilst feeding, Lake Kerkini, Greece, February. Highly commended in World of Birds category in the Cadiz Photo Nature Competi...

Michel Poinsignon / Grey heron (Ardea cinerea) catching fish in lake, Pusztaszer, Hungary, April

Sven Zacek / Low angle shot of Ural owl (Strix uralensis) female returning to its nest at night. Southern Estonia, May.

Joris van Alphen / Montagu's harrier (Circus pygargus) preparing to land at her nest, clasping a songbird. Viewed from below. Groningen, the Netherlands. July.

Edwin Giesbers / Crested newt (Triturus carnifex) Gelderland, The Netherlands, April. Winner of the Amphibians category of the Wildlife Photographer of the Year Awards (WPOY) Competition 2015. Winner of the Underwater...

Anup Shah / Cheetah (Acinonyx jubatus) male juvenile aged about 18 months approaching a kill, wide angle view. Maasai Mara National Reserve, Kenya.

John Waters / Barn Owl (Tyto alba) hunting/hovering, Somerset, UK, trained bird.

Tui De Roy / Galapagos hawks (Buteo galapagoensis) in flight, Galapagos, Ecuador. Vulnerable species.

Jordi Chias / Green turtle (Chelonia mydas) from underneath swimming through the surface, Mayotte Island, Comores, Indian Ocean.

Juan Carlos Munoz / Masked weaverbird (Ploceus velatus) nests in palm tree, Namaqualand, Northern Cape province, South Africa, September 2012.

Mark Taylor / Red toy poodle looking up at camera an sticking out tongue.

Olga Kamenskaya / Man looking through transparent ice (1m thick) on lake surface to see diver below. Lake Baikal, Russia, March 2008. Model released.

Jabruson / Mass emergence of rainforest Skipper butterflies (Melphina sp.) Lokoue Bai, Odzala-Kokoua National Park, Cuvette, Republic of Congo.

Anup Shah / African elephant (Loxodonta africana) close-up. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Chris & Monique Fallows / Black browed albatros (Thalassarche melanophrys), Cape Point, South Africa.

Michele Westmorland / Booby (Sula nebouxii) looking at camera underwater, Galapagos Island.

Anup Shah / Sumatran orangutan (Pongo abelii) female 'Juni' aged 12 years swinging from a liana. Gunung Leuser National Park, Sumatra, Indonesia. Rehabilitated and released (or descended from those which were rel...

Alex Mustard,Alex Mustard / Green surf anemones (Anthopleura xanthogrammica) grow in shallow water below the temperate rain forest. Browning Pass, Port Hardy, Vancouver Island, British Columbia, Canada. North East Pacific Ocean.

Alex Mustard / Trees and sky photographed at dawn through the surface of Three Sisters Spring, Crystal River, Florida, United States of America.

Tim Laman / Rainforest interior views, looking up.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) underwater view of group feeding, Lake Kirkini, Greece. Highly commended in the GDT competition 2013. Commended in the Wildlife Photographer of the Year Awards c...

Alex Mustard / Blue shark (Prionace glauca) swimming near the surface of the English Channel. Penzance, Cornwall, England, British Isles. North East Atlantic Ocean, August. Highly commended in the Portraits category...

Theo Bosboom / Beech trees (Fagus sylvatica) in autumn, seen from under bubbling brook, the Netherlands, November. Runner up in Creative Visions category of the Wildlife Photographer of the Year 2013 competition

Franco Banfi,Franco Banfi / Piraputanga (Brycon hilarii) in the main spring Aquario Natural that goes in the Rio Baia Bonita, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi / Piraputanga (Brycon hilarii) reflecting on the water surface, Aquirio Natural, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi,Franco Banfi / Local man looking down at shoal of Bigeye scad (Selar crumenophthalmus) Waigeo island, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Steven Kazlowski / Polar bear (Ursus maritimus) curious young boar on the newly frozen pack ice reaches for remote camera with paw, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North Slope, Al...

Steven Kazlowski / Polar bear (Ursus maritimus) curious young male on the newly frozen pack ice, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska

Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) 4-5 year-old on pack ice, low angle shot, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Beaufort Sea, autumn

Franco Banfi / Manta ray (Manta birostris), San Benedicto, Revillagigedo (Socorro) Islands, Mexico, East Pacific Ocean

Claudio Contreras / View from bangka boat at dawn, Danajon Bank, Central Visayas, Philippines, April 2013

Andrew Parkinson / Cliff top view of a gannet (Morus bassanus) colony. Shetland Islands, Scotland, UK, July.

David Tipling / Dalmatian Pelicans (Pelicanus crispus) being fed by fisherman at Lake Kerkini, Northern Greece, February

Paul Harcourt Davies / Newly emerged adult Two-tailed Pasha (Charaxes jasius) Podere Montecucco. Orvieto, Umbria, Italy August

Juergen Freund / Sugar Glider (Petaurus breviceps) feeding on sap from a tree trunk. Atherton Tablelands, Queensland, Australia

Franco Banfi / Blue shark (Prionace glauca) viewed from below, with Snell's window effect, Pico Island, Azores, Portugal, Atlantic Ocean

Gavin Hellier / Looking up at canopy of tropical rainforest, Malaysia, 2008

Floris van Breugel / Tiny thimble jellyfish (Linuche unguiculata) drift with the current in the calm turquiose waters of a lagoon in Ofu, American Samoa. The window of sky is called Snell's Window, caused by refraction of...

Floris van Breugel / Turquoise waters of the lagoon along Ofu's National Park beach, American Samoa. January 2012.

Ernie Janes / Apricot tree (Prunus ameniaca) Moorpark variety in blossom trained against a wall in walled garden, UK, March.

Luiz Claudio Marigo / Jequitiba rosa tree (Cariniana legalis) Tableland Atlantic Rainforest of Vale Natural Reserve, municipality of Linhares, Esparito Santo State, Eastern Brazil, January 2012.

Shibai Xiao / Marbled eel (Anguilla marmorata) captured by local people and being held up in net, Hainan Island, China. No release available.

Sue Flood / Bamboo forest, Shikoku Mura open air museum, Takamatsu, Shikoku Island, Japan, May

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

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

Michael W. Richards / Domesticated Indian elephant (Elephas maximus) low angle view of having howdah fitted to take people into Pench Tiger Reserve, Madhya Pradesh, India

Richard Du Toit / Low level view of domestic Ostrich (Struthio camelus), Overberg, Southern Cape, South Africa August

Nuno Sa / Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.

Bence Mate / Dalmatian pelicans (Pelecanus crispus) low angle perspective of open bills, Lake Kerkini, Greece, February. Highly Commended, 2011 Wildlife Photographer of the Year competition.

Bence Mate / Confrontation between a great egret (Ardea alba) and grey heron (Ardea cinerea), Lake Csaj, Kiskunsagi National Park, Hungary.

Bence Mate / Dalmatian pelican (Pelecanus crispus) low angle perspective of open bill, Lake Kerkini, Greece, February. Winner, Eric Hosking award, 2011 Wildlife Photographer of the Year competition

Edwin Giesbers / RF- Konik Wild Horse (Equus ferus caballus) low angle close up of head. The Netherlands. July. (This image may be licensed either as rights managed or royalty free.)

Sergey Gorshkov / Kamchatka Brown bear (Ursus arctos beringianus) walking beside lake, Kamchatka, Far east Russia, August

Alex Hyde / Looking up at Beech wood canopy (Fagus sylvatica) in autumn, Peak District National Park, Derbyshire, UK, November

Alex Mustard / A group of Florida manatees (Trichechus manatus latirostrus) sleeping in the afternoon at Three Sisters Spring. Crystal River, Florida, USA. Manatees sleep on the bottom of the spring, floating up per...

Alex Mustard / A group of Florida manatees (Trichechus manatus latirostrus) sleeping in the afternoon at Three Sisters Spring. Manatees sleep on the bottom of this shallow spring, occasionally rising to the surface...

Alex Mustard / Split level of female California sea lions (Zalophus californianus) basking in the sun on the surface. La Paz, Baja California Mexico. Sea of Cortez, East Pacific Ocean. October

Andrew Walmsley / Silver eye / Grey backed white eye (Zosterops lateralis) in flowering Pohutukawa tree (Metrosideros excelsa) Botanic Gardens, Christchurch, South Island, New Zealand, December

Fabio Liverani / Crested Newt (Triturus cristatus carnifex) underwater view of female swimming near surface, Traversari lake, Campigna National Park, Emilia Romagna and Tuscany regions, Italy

Fabio Liverani / Crested Newt (Triturus cristatus carnifex) underwater view of female swimming on surface, Traversari lake, Campigna National Park, Emilia Romagna and Tuscany regions, Italy

Solvin Zankl / As soon as it entered the water the young Olive ridley sea turtle (Lepidochelys olivacea) struggles against the swell to swim away from the coast. The swimming frenzy lasts for approximately 48 hours...

Inaki Relanzon / Looking up into European Beech (Fagus sylvatica)tree canopy in autumm colours. Ordesa y Monte Perdido National Park, Pyrenees, Aragon, Spain. October 2009

Doug Allan / Humpback whale (Megaptera novaeangliae) swimming below a whale watching boat, Sue Flood, photographer in boat, Vava'u, Kingdom of Tonga, South Pacific, September 2006, Model released

Fred Bavendam / Common Comet Star (Linckia guildingii) in an unusual lavender color variation, it is typically beige or yellowish in color, Manado, North Sulawesi, Indonesia

Artur Tabor / Moor frogs and frogspawn (Rana arvalis) Poland

John Downer / Wide angle shot of Elephant herd taken with remote control camera during filming of BBC television programme 'Elephants - Spy in the Herd' 2003

Jack Dykinga / Burrowing owl (Athene cunicularia) fledgling aged one month tilting head to judge distance. Marana, Arizona, USA. May.

Andy Rouse / Golden oriole (Oriolus oriolus) pair, male perched on stump, female flying above. Ranthambhore National Park, India.

Laurie Hedges / Drone shot tracking over oil palm plantations and rainforest edge, showing areas of deforestation, Rondonia, Brazil, 2019.

Terry Whittaker / Man being lowered down a cliff to collect seabird eggs, including those of Common guillemots (Uria aalge). Camera attached to helmet, Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland, May.

Chris Mattison / RF - View up Quiver tree (Aloidendron dichotomum), Western Cape, South Africa (This image may be licensed either as rights managed or royalty free.)

Bruno D'Amicis / Italian treefrog (Hyla intermedia) close-up of male calling during mating season. Endemic to Italy. Central Apennines, Abruzzo, Italy, April.

Bruno D'Amicis / Red fox (Vulpes vulpes) portrait. Central Apennines, Molise, Italy, February.

Michel Roggo / Underwater view of African tigerfish (Hydrocynus vittatus), predatory fish in the Okavango river with Water lily (Nymphaea nouchali var. caerulea) and other aquatic plants. Okavango Delta, Botswana, J...

Anup Shah / Blue Wildebeest (Connochaetes taurinus) herd running, Masai Mara, Kenya

Michel Roggo / Candover Brook, tributary of the River Itchen, chalk stream Hampshire, England, UK, June, Photographed for The Freshwater Project

Espen Bergersen / Taiga forest photographed from air, Finland, September 2016. Highly commended in the GDT European Wildlife Photographer of the Year Awards 2017 and Honorable mention in Beauty of Nature Category of th...

Pal Hermansen / Woman cleaning Common eider (Somateria mollissima) down on down harp, Lanan Island, Vega UNESCO World Heritage Site, Norway, July. Highly commended in the Man and Nature Category of Terre Sauvage Natu...