Sergio Hanquet / Green sea turtle (Chelonia mydas), two viewed from above. Tenerife, Canary Islands.

Sven Zacek / Ural owl (Strix uralensis) perched in tree sleeping, viewed through a fence, Estonia.

Nick Upton / View towards Naranjo de Bulnes (Picu Urriellu) a distinctive 2519m limestone peak, Picos de Europa mountains, viewed from Arenas de Cabrales at sunset, Asturias, Spain, August 2016.

David Fleetham / Lemon sharks (Negaprion brevirostris) viewed from below. West End, Grand Bahamas, Caribbean.

David Fleetham / Lemon shark (Negaprion brevirostris) viewed from below. West End, Grand Bahamas, Caribbean.

Michel Roggo / Autumn trees viewed from below Lake Baikal, Lake Baikal UNESCO World Heritage Site, Siberia, Russia. May 2013. Photographed for The Freshwater Project.

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...

Theo Bosboom / Maple leaf in autumn, viewed from underwater with bubbles and foam of mountain stream, La Hoegne, Ardennes, Belgium.

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

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

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

Steve Downer / Black arion slug (Arion ater) moving, viewed from beneath showing ripples or pedal waves used for locomotion.

Ingo Arndt / Foot of Banded snail {Cepaea sp} viewed from below

Wim van den Heever / Table Mountain viewed from across the sea at sunset, Cape Town, South Africa

Claudio Contreras / Hawksbill turtle (Eretmochelys imbricata) swimming, viewed from below, Cozumel Reefs National Park, Cozumel Island, Yucatan Peninsula, Mexico, February

Edwin Giesbers / Imbabura treefrog (Hypsiboas picturatus) viewed from above, in Colombia and Ecuador.

Wim van den Heever / Gemsbok (Oryx gazella) viewed from above, Namib Desert, Namibia.

Franco Banfi / Devilrays (Mobula tarapacana) two viewed from below, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean.

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

Richard Robinson / Blue shark (Prionace glauca) viewed from below, off the coast of Hawke's Bay, New Zealand, February.

Erlend Haarberg / Lysefjorden viewed from the Preikestolen (Pulpit rock) on misty summer morning with sun rays shining down, Forsand, Rogaland, Norway.

Hougaard Malan / Perito Moreno glacier viewed over bright autumn foliage, Patagonia, Argentina. April 2013. Non-ex.

Hougaard Malan / Misty morning in the Drakensberg viewed from behind the Organ Pipes. Cathedral Peak Region, Drakensberg, South Africa. November 2012.

Orsolya Haarberg / Kirkefjorden and surrounding mountains, viewed from Reinebringen. Hammarskaftet can be seen in foreground. Moskenes municipality, Lofoten, Nordland, Norway. October 2012

Peter Cairns / Isle of Rum at sunset viewed from Eigg, Scotland, April 2013.

Peter Cairns / Isle of Rum at sunset viewed from Eigg, Scotland, April 2013.

Wild Wonders of Europe / Lundgren / Pool Frog (Pelophylax lessonae) viewed from below while swimming, underwater around Crisan village, Danube Delta, Romania, June.

Kirkendall-Spring / Lower Yellowstone Falls on the Yellowstone River viewed from Artist Point, Yellowstone National Park, Wyoming, USA, June 2013.

Kirkendall-Spring / Lower Yellowstone Falls with rainbow, on the Yellowstone River viewed from Lookout Point Trail, Yellowstone National Park, Wyoming, USA, June 2013.

Kirkendall-Spring / View over the Campbell Lakes with stormy clouds at dusk, viewed from Walker Valley Overlook in Hart Mountain National Antelope Refuge, Oregon, USA, May 2013.

Chris & Monique Fallows / Blue Shark (Prionace glauca) viewed from below with Pilot fish (Naucrates ductor) Cape Point, South Africa.

Michael Pitts / Devil rays (Mobula japonica) viewed from below, South Ari atoll, Maldives.

Laurent Geslin / Blue tit (Parus caeruleus) at the entrance to its nest in a tree, viewed from inside, Geneva, Switzerland

Laurent Geslin / Oystercatchers on beach, viewed from above {Haematus ostralegus} Cornwall, England

Orsolya Haarberg,Orsolya Haarbe / The Northern lights (Aurora borealis) viewed from Moskenes, Lofoten, Nordland, Norway, March 2006

Orsolya Haarberg,Orsolya Haarberg / The Northern lights (Aurora borealis) viewed from Moskenes, Lofoten, Nordland, Norway, March 2006

Willem Kolvoort / Water lily (Nymphaea rudgeana) leaves viewed from below in a black water creek. Suriname, October.

Robert Thompson / Blasker sound, viewed form Blasket Island Boat station, Dingle Peninsula, County Kerry, Republic of Ireland, November 2012

Franco Banfi / Great Blue shark (Prionace glauca) profile portrait viewed from slightly above, Pico Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Great Blue shark (Prionace glauca) viewed from above, Pico Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Scuba diver under ice, surfacing to the hole, viewed from underneath, Arctic circle Dive Center, White Sea, Karelia, northern Russia March 2010. No release available.

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

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

Colin Varndell / Harvest mouse (Micromys minutes soricinus) viewed from above, captive, UK, April 2012

Onne van der Wal / Yacht viewed from underwater, Saint Barths Bucket Super Yacht Regatta, Caribbean, March 2009.

Onne van der Wal / Yacht viewed from underwater, Saint Barths Bucket Super Yacht Regatta, Caribbean, March 2009.

Linda Pitkin / 2020VISION / Mute Swan (Cygnus olor) swimming in harbour, viewed from underwater, St Abbs (St Abbs and Eyemouth Voluntary Marine Reserve), Berwickshire, Scotland, UK, October 2011. Did you know? In Scotland and Ir...

Andy Rouse / 2020VISION / European river otter (Lutra lutra) viewed from bridge, Dorset, UK, December

Peter Lewis / Sunset over Fawley oil refinery viewed from Portsdown Hill, Hampshire, UK, October 2010

Peter Lewis / Sunset over Fawley oil refinery viewed from Portsdown Hill, Hampshire, UK, October 2010

Peter Lewis / Corfe Castle rising out of mist, viewed from Kingstone, Purbeck, Dorset, UK, September 2010

Guy Edwardes / 2020VISION / Michelham Priory viewed at dawn from Wilmington Hill, Wilmington, South Downs National Park, East Sussex, England, UK, July 2011

Guy Edwardes / 2020VISION / Dawn mist and rolling chalk downland viewed from Wilmington Hill, Wilmington, South Downs National Park, East Sussex, England, UK, July 2011

Guy Edwardes / 2020VISION / Rolling chalk downland and arable farmland viewed from Wilmington Hill, Wilmington, South Downs National Park, East Sussex, England, UK, July.

Alex Mustard / 2020VISION / Snorkellers viewed from below, Kimmerage Bay, Dorset, UK, August

Kirkendall-Spring / Canopy of autumn trees and rising fog viewed from Webb Overlook along the Newfound Gap Road in Great Smoky Mountains National Park, North Carolina, USA, October 2008

Peter Cairns / 2020VISION / Cloud patterns viewed up through silhouettes of standing stones on blanket bog, Flow country, Forsinard, Caithness, Highland, Northern Scotland, UK, June 2011

Niall Benvie / 2020VISION / Silhouette of Stac Pollaidh against storm sky, viewed from Tanera More, Coigach and Assynt, Sutherland, Scotland, UK, July 2011

Chris O'Reilly / Red fox (Vulpes vulpes) feeding on discarded fish and chips in street at night, viewed from car, Derbyshire, UK, May

Ernie Janes / Barn owl (Tyto alba) in flight, viewed through car windscreen at night, Norfolk, UK, model released. Digital composite

Juergen Freund / Fluorescent coral viewed under normal light, Misool, Raja Ampat, West Papua, Indonesia, sequence 1/2

Juergen Freund / Fluorescent coral viewed under UV light, Misool, Raja Ampat, West Papua, Indonesia, sequence 2/2

Orsolya Haarberg / Thin layer of ice viewed through a polarizing filter, Helgeland, Nordland, Norway.

Nick Upton / Shoal of young sardines (Sardina pilchardus) swimming in various directions close to the shore in a shallow sandy bay, viewed from above water. Eastern Lesbos /Lesvos, Greece, August.

Nick Upton / Shoaling young sardines (Sardina pilchardus) swimming in shallow water in a sandy bay, casting shadows on the seafloor, viewed from above water. Eastern Lesbos / Lesvos, Greece, August.

Laurent Geslin / Alpine newt (Triturus alpestris) swimming in garden pond, viewed from below, with woman and child watching. Switzerland, April 2010. Model released

Alex Mustard / Large Manta ray (Manta birostris) feeding on plankton in very shallow water, viewed from the surface. Hanifaru Lagoon, Baa Atoll, Maldives. Indian Ocean.

Alex Hyde / Close-up of the underside of foot of Leaf-tailed gecko {Uroplatus sikorae} as it walks on vertical glass. The finely divided setae on the toe pads stick the gecko to the smooth surface through van der...

Alex Hyde / Madagascar reed frog {Heterixalus madagascariensis} underside viewed through glass, Masoala Peninsula National Park, north east Madagascar.

Alex Hyde / Lowland rainforest viewed from canopy platform, Masoala Peninsula National Park, north east Madagascar, October 2009

Claudio Contreras / Guadalupe fur seal (Arctocephalus townsendi) viewed from above, in the surf, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, February

Guy Edwardes / Wind turbines near Kilmore Quay viewed from boat at dawn. Co. Wexford, Republic of Ireland, Europe June 2010.

Laurent Geslin / Alpine newt (Triturus alpestris) breathing at the surface of a garden pond, with mother and child observing, viewed from underwater, Switzerland. April 2010.

Laurent Geslin / Landscape of Lake Leman at night, viewed through gateway. December 2009.

Stephen Dalton / Muscid fly (Muscidae) on glass, viewed from under the glass showing feet, UK, controlled conditions

Peter Lewis / Sun rising through mist behind Salisbury Cathedral viewed across Harnham Water Meadows. Salisbury Wiltshire, England. March 2009

Wild Wonders of Europe / Zupanc / Mount Prisojnik (2,547m) and Mount Razor (2,601m), viewed from Kranjska Gora. Triglav National Park, Julian Alps, Slovenia, July 2009.

Sven Zacek / Herring gull (Larus argentatus) in flight, viewed from directly below. Atlantic ocean, Flatanger, Norway, Scandinavia.

Edwin Giesbers / Common tree frog (Hyla arborea) silhouette viewed through leaf, the Netherlands

Edwin Giesbers / Common tree frog (Hyla arborea) silhouette viewed through leaf, the Netherlands

Edwin Giesbers / Common tree frog (Hyla arborea) silhouette viewed through leaf, the Netherlands

Wild Wonders of Europe / Hermans / Sun reflected in sea at sunset, viewed from the Cliffs of Moher, County Clare, Republic of Ireland, June 2009

Wild Wonders of Europe / Maitland / Three Great white pelicans (Pelecanus onocrotalus) silhouetted against the sunrise over Mount Golema (2179m) and Mount Pelister (2600m ) in the Pelister National Park, viewed from Stenje village acros...

Wild Wonders of Europe / Geslin / Lake Belau, viewed from a boat, South west Moldova, June 2009

Wild Wonders of Europe / Bartocha / Baltic sea, viewed from Mn at dusk, Denmark, July 2009

Wild Wonders of Europe / Zupanc / Sunrise in the Julian Alps, viewed from Mount Kriz, Triglav National Park, Slovenia, July 2009 WWE BOOK

Wild Wonders of Europe / Zupanc / Mount Velika Mojstrovka (2,056m) reflected in a pool, viewed from Sleme, Triglav National Park, Julian Alps, Slovenia, July 2009

Wild Wonders of Europe / Zupanc / Sunrise in the Julian Alps, viewed from Mount Kriz, Triglav National Park, Slovenia, July 2009

Wild Wonders of Europe / Zupanc / Sunrise in the Julian Alps viewed from Mount Kriz, Triglav National Park, Slovenia, July 2009

Wild Wonders of Europe / Zupanc / Mount Jalovec (2,645m) with reflection in a small pool, viewed from Sleme, Triglav National Park, Julian Alps, Slovenia, July 2009

Ross Hoddinott / Blue tailed / Common blue damselfly {Enallagma cyathigerum} eyes viewed from below stalk it is resting on, Cornwall, UK. August

Wild Wonders of Europe / Radisics / Lake Skadar viewed from the Albanian border, with Cormorants in flight, Lake Skadar National Park, May 2008

Wild Wonders of Europe / Radisics / White water lily (Nymphea alba) in flower, viewed from below the surface, Lake Skadar, Lake Skadar National Park, Montengro, May 2008

Wild Wonders of Europe / Radisics / Yellow water lilies (Nuphar lutea) viewed from underwater, Lake Skadar, Lake Skadar National Park, Montenegro, May 2008

Wild Wonders of Europe / Relanzón / Berjenado peak viewed from the Caldera, Caldera de Taburiente National Park, La Palma, Canary Islands, Spain, March 2009

Wild Wonders of Europe / López / Dark cloudy sky over Lake Usma viewed from Moricsala Island, Moricsala Strict Nature Reserve, Latvia, June 2009