Ben Hall / Chilean flamingos (Phoenicopterus chilensis) in flight over mountain peaks with glacier in the distance, Torres Del Paine National Park, Chile. Winner of Landscape category, Nature's Best / Windland S...

Ben Hall / Andean condor (Vultur gryphus) in flight over mountain peaks, Torres Del Paine National park, Chile.

Danny Green / Snow Geese (Chen caerulescens) in flight, silhouetted against colourful dusk sky. Bosque del Apache, New Mexico, USA, November.

Danny Green / Snow Goose (Chen caerulescens), coming in to land. Bosque del Apache, New Mexico, USA, November.

Mark Carwardine / Two Sandhill cranes (Grus canadensis) flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA

Mark Carwardine / Mallard (Anas platyrhynchos) drake flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA

Mark Carwardine / Adult male Northern pintail duck (Anas acuta) flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA

Mark Carwardine / Sandhill cranes (Grus canadensis) flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA

Jack Dykinga / Colorado River Delta, with watercourse sculpted patterns eroded into the salt / silt flats near the Sea of Cortez, La Reserva del Golfo, Baja, Mexico

Roland Seitre / Hoffman's Two Toed Sloth (Choloepus hoffmanni) being weighed and recorded. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Volunteer holding Hoffman's Two Toed Sloth (Choloepus hoffmanni) Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Hoffmann's Two Toed Sloth (Choloepus hoffmanni) baby wrapped in cloth. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Brown-throated Three Toed Sloth (Bradypus variegatus) and Hoffmann's Two Toed Sloths (Choloepus hoffmanni) babies being fed. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Brown-throated Three Toed Sloth (Bradypus variegatus) and Hoffmann's Two Toed Sloths (Choloepus hoffmanni) babies held by orphanage owner, Judy Avey-Arroyo. Aviarios del Caribe Sloth Refuge, Costa Ric...

Konrad Wothe / Flock of Snow Geese (Chen caerulescens atlanticus / Chen caerulescens) in flight to their winter roosting site, crossing a full moon, Bosque del Apache, New Mexico, USA, November

Konrad Wothe / Three Snow Geese (Chen caerulescens atlanticus / Chen caerulescens) in flight, Bosque del Apache, New Mexico, USA, November

Konrad Wothe / Mixed flock of Snow geese (Chen caerulescens atlanticus / Chen caerulescens) and Sandhill cranes (Grus canadensis) at wintering area at dawn, with full moon, Bosque del Apache, New Mexico, USA, Novemb...

Brent Stephenson / A cruise ship heads back up the Beagle Channel towards Ushuaia at the end of an Antarctic cruise. Beagle Channel, Tierra del Fuego Archipelago, South America, December.

Oriol Alamany / Chilean huemul or South Andean deer (Hippocamelus bisulcus), Torres del Paine National Park, Patagonia, Chile. Endangered species

Oriol Alamany / Chilean huemul or South Andean deer (Hippocamelus bisulcus), Torres del Paine National Park, Patagonia, Chile. Endangered species

Oriol Alamany / Guanaco (Lama guanicoe) female with young chulengo in Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / Guanaco (Lama guanicoe) three young standing alert, Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / Guanaco (Lama guanicoe) Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / Torres del Paine rock towers, Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / People and an iceberg in Lake Grey with Valle del Frances in the background, Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / Cuernos del Paine at dawn seen from Pehoe lake, Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / Paine mountains at dawn seen from Pehoe Lake, Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / Sunset clouds over Paine mountains, seen from Pehoe Lake, Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / Grey glacier over Grey lake, Torres del Paine National Park, Patagonia, Chile

Graham Eaton / White-nosed Coati (Nasua narica) family walking along a road. Playa del Carmen, Mexico, Fabruary.

Philippe Clement / The mountain range Gruppo del Sorapis and hotels at night along lake Lago di Misurina. Auronzo di Cadore, Dolomites, Italy, July 2010.

Charlie Summers / Three Snow Geese banking and gliding in preparation for a landing (Chen caerulescens). Bosque del Apache, New Mexico, January.

Inaki Relanzon / Ibon del Acherito, (Acherito Lake), surrounded by mountain peaks. Anso Valley, Pyrenees, Aragon, Spain, July 2007.

David Noton / Woman and man with livestock walking along path, Isla del Sol, Lake Titicaca, Bolivia, December 2009

Oriol Alamany / Lenga Beech forest (Nothofagus pumilio) and Frances Glacier on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Glaciar lagoon below Torres del Paine, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Lenga forest (Nothofagus pumilio) in Ascensio river valley on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Peak and glaciers at Paine Grande (3050 m), Torres del Paine National Park, Patagonia, Chile, January 2006

Mary McDonald / Pumas (Felis concolor) feeding on kill, camouflaged in tall grassland,Torres del Paine, Chile, South America

Bence Mate / Keel-billed Toucan (Ramphastos sulfuratus) attacking a Brown-hooded Parrot (Pionopsitta haematotis) Laguna del Lagarto, Santa Rita, Costa Rica

Bence Mate / Collared Aracari (Pteroglossus torquatus) displaying at Montezuma Oropendola (Psarocolius montezuma) Laguna del Lagarto, Santa Rita, Costa Rica

Bence Mate / Keel-billed Toucan (Ramphastos sulfuratus) in aggressive encounter with a Montezuma Oropendola (Psarocolius montezuma), Laguna del Lagarto, Santa Rita, Costa Rica

Bence Mate / Three Brown-hooded Parrots (Pyrilia haematotis) one taking off from branch, in the rain Laguna del Lagarto, Santa Rita, Costa Rica

Juan Carlos Munoz / Commerical fishing boat passes through the Parque Natural del Estrecho, off Costa de la Luz, Cadiz, Andalucia, Spain, July 2008

Winfried Wisniewski / Sandhill Crane (Grus canadensis) pair flying, Bosque del Apache National Wildlife Refuge, New Mexico

Mary McDonald / Chestnut-mandibled Toucan (Ramphastos ambiguus swainsonii) adult bird perched on the edge of the forest. Laguana del Lagarto, Costa Rica, Central America.

Doug Perrine / Female Bull sharks (Carcharhinus leucas) in seasonal breeding aggregation with Sharksuckers (Echeneis naucrates) Playa del Carmen, Cancun, Quintana Roo, Yucatan Peninsula, Mexico (Caribbean Sea)

Inaki Relanzon / Moixer mountains, Penyes Altes del Moixer, Cadi Moixero and Pedraforca Natural Park, Pyrenees, Barcelona, Catalunya, Spain. November 2009

Inaki Relanzon / Moixer mountains, Penyes Altes del Moixer, Cadi Moixero and Pedraforca Natural Park, Pyrenees, Barcelona, Catalunya, Spain. November 2009

Patricio Robles Gil / Resplendent quetzal (Pharomachrus mocinno) male dissapearing into nest hole in tree, El Triunfo biosphere reserve, Sierra Madre del Sur, Chiapas, Mexico

Patricio Robles Gil / Resplendent quetzal (Pharomachrus mocinno) male at entrance to nest hole in tree, showing very long tail feathers, cloud forest El Triunfo biosphere reserve, Sierra Madre del Sur, Chiapas, Mexico

Patricio Robles Gil / Resplendent quetzal (Pharomachrus mocinno) male perched, El Triunfo biosphere reserve, Sierra Madre del Sur, Chiapas, Mexico

Patricio Robles Gil / Resplendent quetzal (Pharomachrus mocinno) male at nest hole in tree, El Triunfo biosphere reserve, Sierra Madre del Sur, Chiapas, Mexico

Patricio Robles Gil / Resplendent quetzal (Pharomachrus mocinno) male at nest hole in tree, El Triunfo biosphere reserve, Sierra Madre del Sur, Chiapas, Mexico

Wild Wonders of Europe / Hodalic / Olm (Proteus anguinus) on rock, Oliero cave, Valle del Brenta, commune di Valstagna, northern Italy, March 2005, Vulnerable species

Kristel Richard / Portrait of a traditionally dressed horse parading during the Feria Del Caballo (Horse Fair), Jerez De La Frontera, Andalucia, Spain, May 2009

Kristel Richard / Five traditionally dressed horses, pulling a carriage, parade during the Feria Del Caballo (Horse Fair), Jerez De La Frontera, Andalucia, Spain, May 2009

Juan Manuel Borrero / St. Llorenc del Munt Natural Park. Barcelona, Catalonia, Spain. January 2009.

Wild Wonders of Europe / Bartocha / Cuirassed / Bosnian pine (Pinus leucodermis / heldreichii) tree stump on the Piana del Pollino with Serra delle Ciavole (left) and Serra Dolcedorme (right) Pollino National Park, Italy, May 2009 WWE B...

Angelo Gandolfi / Prehistoric rock painting of human hands. La Fuente del Salin cave, Cantabria, Spain.

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Flock of Griffon vultures (Gyps fulvus) in flight over carrion. Valle del Agusejo, Castilla y Leon, Spain.

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping. The sequence of folding wings to gain speed. Canyon del Ebro y Rudron, Castilla y Leon, Spain. COMPOSITE IMAGE.

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings to gain speed. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Karstic pools near Orbaneja del Castillo, Canyon del Ebro y Rudron, Castilla y Leon, Spain.

Angelo Gandolfi / Egyptian vulture (Neophron percnopterus) in flight, with natural rock arch in the background. Canyon del Ebro and Rudron, Castilla y Leon, Spain.

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with wings completely folded. Canyon del Ebro y Rudron, Castilla y Leon, Spain.

Angelo Gandolfi / Sunset at Salto del Roldan canyon, a nesting place for birds of prey. Sierra de Guara, Aragon, Spain, 2007.

Andy Rouse / Large flock of Snow geese (Chen caerulescens) taking off, Bosque del Apache National Wildlife Refuge, New Mexico, USA

Andy Rouse / Aerial view of a large flock of Snow geese (Chen caerulescens) on lake, Bosque del Apache, New Mexico, USA

David Tipling / Snow geese {Anser / Chen caerulescens} flock taking off, Bosque del Apache, New Mexico, USA, January

Andy Rouse / Snow geese (Chen caerulescens) landing, Bosque del Apache, New Mexico, USA

Andy Rouse / Flock of Snow geese (Chen caerulescens) taking off, Bosque del Apache, New Mexico, USA

Jack Dykinga / Silhouette at sunrise of contorted wind blown Mexican pinyon pine tree {Pinus cembroides}, Sierra del Carmen in the background, Coahuila, Mexico

Michael Hutchinson / Cururu / Roccoco toad (Bufo paracnemis), largest amphibian in Argentina, Esteros del Ibera, Argentina, November

Wild Wonders of Europe / Widstrand / Duratn River flowing through a gorge, Hoces del Rio Duratn Natural Park, Segovia, Spain, March 2009

Wild Wonders of Europe / Grunewald / Lava flow in the "Valley del Bove" the Eastern side of Mount Etna Volcano, Sicily, Italy, May 2009

Wild Wonders of Europe / Grunewald / Old cone in the "Valley del Bove" the eastern side of Mount Etna Volcano, Sicily, Italy, May 2009

Martin van Lokven / Red-eyed Tree Frog (Agalychnis callidryas), Laguna del Lagarto, Boca Tapada, Costa Rica

Inaki Relanzon / Hiker on path that is cut through the rock, Garganta del Cares, Picos de Europa NP, Leon, Spain, July 2000

Fabio Liverani / Crested newt {Triturus cristatus carnifex} male in breeding colours, Parco Delta del Po, NE Italy captive 2008

Fabio Liverani / Crested newt {Triturus cristatus carnifex} male in breeding colours, Parco Delta del Po, NE Italy captive 2008

Thomas Marent / Banana Spider (Nephila clavipes) female and smaller male, Bocas del Toro, Panama

Inaki Relanzon / Morning clouds filling the valley of Atla Vall del Llobegat in Cadi Moixero Natural Park, Spanish Pyrenees

Inaki Relanzon / Autumnal trees and a rocky outcrop in Sierra del Balcon. Valley de Ordesa Natural Park, Huesca, Aragon, Spanish Pyrenees

Jack Dykinga / Gopher snake (Pituophis sp) amongst Lechuguilla (Agave lechuguilla) and prickly pear cacti (Opuntia macrocentra), Maderas del Carmen Natural Reserve, Mexico

Jack Dykinga / Oak tree (Quercus sp) in the San Isidro Canyon, Maderas del Carmen Natural Preserve, Coahuila, Mexico

Jose B. Ruiz / Ancient Carob tree (Ceratonia siliqua), Alfaz del Pi, Alicante, Spain

Jose B. Ruiz / Ancient Carob tree (Ceratonia siliqua), Alfaz del Pi, Alicante, Spain

Jose B. Ruiz / Griffon vulture (Gyps fulvus) three flying, Hoces del Duratn, Segovia, Spain

Patricio Robles Gil / River flowing through desert cliffs, Sierra del Carmen region, Coahuila, Mexico

Patricio Robles Gil / Lightning storm at night over the Sierra del Carmen range, Mexico

Jose B. Ruiz / Pine tree propped-up, Sant Cugat del Valles, Barcelona, Spain.