Gavin Hellier / Elevated view over the Djemaa el-Fna at sunset, Marrakech, Morocco, 2011. No release available.

Tim Fitzharris / Palm trees on coast, Bacuit Bay near El Nido, Palawan, Philippines

Claudio Contreras / Central American Spider Monkey (Ateles geoffroyi) orphan baby hanging from washing line. El Mirador- Rio Azul National Park, Department of Peten, Guatemala.

Claudio Contreras / Yucatan banded gecko (Coleonyx elegans), El Mirador-Rio Azul National Park, Department of Peten, Guatemala, October.

Claudio Contreras / Royal Tern (Thalasseus maximus), El Requeson, Gulf of California, Baja California Peninsula, Mexico, December.

Konrad Wothe / Mandara Lakes in the dunes of Ubari, oasis Um el Ma, Libyan desert, Libya, Sahara, North Africa, December 2007

Konrad Wothe / Tuaregs under date Palm at Mandara Lakes, oasis Um el Ma, Libyan desert, Libya, Sahara, North Africa, December 2007. No release available.

Claudio Contreras / Detail of Ocellated Turkey (Meleagris / Agriocharis ocellata) plumage. El Mirador-Rio Azul National Park, Department of Peten, Guatemala.

Claudio Contreras / Detail of Ocellated Turkey (Meleagris / Agriocharis ocellata) plumage. El Mirador-Rio Azul National Park, Department of Peten, Guatemala.

Kristel Richard / A traditionally dressed cowboy riding a Quarter mare, during the rodeo of the Festival de la Doma y el Folclore, Estancia Tacuaty, Misiones, Paraguay, January 2012. No release available.

Jeff Rotman / Young El Molo warrior with his face painted for a tribal dance, Lake Turkana, Kenya, April 2008. Model released.

Jeff Rotman / El Molo warriors stabbing a Hippopotamus (Hippopotamus amphibius) during a night hunt, Lake Turkana, Kenya, April 2008.

Juergen Freund / Silhouette of karst limestone outcrop and Coconut trees (Cocos nucifera) of Entalula Island at sunset. El Nido, Northern Palawan, May 2009.

Inaki Relanzon / Cliffs and sea-stacks on the coast of "El Hierro" Island. Canary Islands, February 2011.

Inaki Relanzon / Thousand-year-old Canary Juniper, (Juniperus turbinata canariensis/ Juniperus phoenicea var. turbinata ) against a dusky sky. El Sabinar, El Hierro Island, Canary Islands, February 2011.

Juergen Freund / Diver amongst Sergeant major damselfish (Abudefduf vaigiensis) house reef of Miniloc Island Resort, El Nido, Palawan, Philippines. These fish come together densely when bread is thrown into the water...

Juergen Freund / Sergeant major damselfish (Abudefduf vaigiensis), Parrotfish and Wrasses in the house reef of Miniloc Island Resort, El Nido, Palawan, Philippines. These fish come together densely when bread is throw...

Juergen Freund / Snorkeler swimming through a school of Oxeye scads (Selar boops) in the house reef of Miniloc Island Resort, El Nido island, Palawan, Philippines, May 2009. Model released.

Juergen Freund / Snorkeler swims amongst Sergeant major damselfish (Abudefduf vaigiensis) at the house reef of Miniloc Island Resort, El Nido Island, Palawan, Philippines, May 2009. These fish gather in a dense mass w...

Juergen Freund / Snorkeler swimming underwater, split level, with Miniloc Island Resort in the background, El Nido, Palawan, Philippines, May 2009. Model released

Juergen Freund / Sergeant major damselfish (Abudefduf vaigiensis) at the house reef of Miniloc Island Resort, El Nido Island, Palawan, Philippines, May 2009. These fish gather in a dense mass when bread is thrown into...

Juergen Freund / Sargassum frogfish / anglerfish (Histrio histrio) in its floating Sargassum seaweed home, El Nido, Palawan, Philippines

Juergen Freund / Giant trevally (Caranx ignobilis) chasing shoal of Oxeye Scads (Selar boops) in the house reef of Miniloc Island Resort, El Nido, Palawan, Philippines

Juergen Freund / Diver lowering an artificial reef made of ceramic snowflakes to help rejuvenate the dead reef of El Nido. The 1998 El Nino caused a massive scale coral bleaching to this tourist town that used to have...

Juergen Freund / Sargassum frogfish / anglerfish (Histrio histrio) in its floating Sargassum seaweed home, El Nido, Palawan, Philippines

Juergen Freund / Sargassum frogfish / anglerfish (Histrio histrio) in its floating Sargassum seaweed home, Miniloc island in the background, El Nido, Palawan, Philippines.

Pete Oxford / Snake charmer's Egyptian cobra (Naja haje) and African puff-adder (Bitis arietans arietans) Djemaa el-Fna (the square), Marrakech, Morocco, June 2009

Pete Oxford / Food stalls in the market at night with Koutoubia Mosque in the background, Djemaa el-Fna (the square), Marrakech, Morocco, June 2009

Oriol Alamany / Rainbow over the town of El Chalten, Los Glaciares National Park, Patagonia, Argentina, January 2006

Patricio Robles Gil / "Male Baja California / Peninsular pronghorn (Antilocapra americana peninsularis) vocalising, semicaptive breeding facility, Biosphere Reserva of El Vizcano, Baja, Mexico, Critically endangered subspe...

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 / Elander / Stemless gentian (Gentiana acaulis) close-up of flower, El Ilempo, Canillo, Andorra, June 2009

Angelo Gandolfi / Birdwatchers observing White Storks (Ciconia ciconia) in flight over the Strait of Gibraltar. Mirador El Estrecho, Andalusia, Spain, 2007.

Wild Wonders of Europe / Relanzón / Sea rocket (Cakile maritima) in flower, El Jable sand dunes Natural Park, North Fuerteventura, Canary Islands, Spain, March 2009

Mark Bowler / Sustainable river fishing for Silver Arowana / Arahuana (Osteoglossum bicirrhosum) for the tropical fish trade - baby Arowana fish fry are harvested from the adult male (this species is a mouth broode...

Mark Bowler / Commercial fishing trawler off Paracas peninsula, Peru, 7th August 2007. Fishery off the coast of Peru Produces 10% of the worlds fish and is severly effected by 'El Nino' years which are becoming m...

Jack Dykinga / Silhouette of Tree ferns {Cyathea sp} against sunset after a storm, El Triunfo Biosphere Reserve, Chiapas, Mexico

Jack Dykinga / Pink flowers fallen from Marlberry tree (Ardisia sp) in the forest canopy above onto dense carpet of ferns, El triunfo Biosphere Reserve, Chaipas, Mexico

Jack Dykinga / Pine tree draped with moss, and a bromeliad growing on it, in the cloud forest of El Cielo Biosphere Reserve on a misty morning. Tamaulipas, Mexico

Jack Dykinga / Aerial view of alluvial patterns in the Upper Gulf and Colorado Delta Biosphere Preserve, El Golfo, Baja California, Mexico

Jack Dykinga / Flowering Lobelia (Lobelia cardinalis) beside a pool with submerged Yellow pond lily (Nuphar polysepala) and Cypress (Taxodium sp) in El Cielo Biosphere Reserve, Tamaulipas, Mexico

Jose B. Ruiz / Washed-up seaweed on beach, Buelna beach, El Picon, Llanes, Asturias, Spain

Jose B. Ruiz / Buelna beach, El Picon, Llanes, Asturias, Spain

Jose B. Ruiz / Washed-up seaweed on Buelna beach, El Picon, Llanes, Asturias, Spain

Jose B. Ruiz / Sea washing up over beach with Seaweed, Buelna beach, El Picon, Llanes, Asturias, Spain

Jose B. Ruiz / Buelna beach, El Picon, Llanes, Asturias, Spain

Jose B. Ruiz / Rock on Buelna beach, El Picon, Llanes, Asturias, Spain

Kirkendall-Spring / View of El Dorado massif from the Hidden Lake Peaks Trail in the North Cascades, Washington USA

Kirkendall-Spring / El Capitan in the mist after a winter storm, Yosemite NP, California, USA

Jeff Rotman / Coral reef table. Sharm-el-Sheik, Egypt, Red Sea

Patricio Robles Gil / Gambel's Quail (Callipepla gambelii) adult perched atop a blooming cactus, El Pinacate/Gran Desierto de Altar Biosphere Reserve, Sonora, Mexico

Tim Fitzharris / Sea arch and full moon over El Matador State Beach, Malibu, California

Doug Perrine / Izaco volcano, El Salvador, Central America

Gabriel Rojo / Long tailed meadowlark {Sturnella loyca} El Condorito NP, Argentina

Gabriel Rojo / Palm trees {Syagrus yatay} El Palmar National Park, Argentina

Gabriel Rojo / Palm trees {Syagrus yatay} El Palmar Ntional Park, Argentina

Gabriel Rojo / Rufous collared sparrow {Zonotrichia capensis} El Condorito NP, Argentina

Pete Oxford / Paramo wetland habitat with {Polylepis incana} trees. El Angel reserve, Andes, Ecuador

Thomas Mangelsen / Monarch (Danaus plexippus) butterfly group perching on a female tourist, El Rosario Monarch Butterfly Sanctuary, Mexico

Pete Oxford / Paramo Flower (Espeletia pycnophylla) field, El Angel Reserve, northeastern Ecuador

Patricio Robles Gil / Accumulated rainwater on a Mafafa leaf in El Cielo Biosphere Reserve in the mountains of the Sierra Madre Oriental, Tamaulipas, northeast Mexico

Doug Wechsler / Phantasmal poison arrow frog {Epipedobates tricolor} in cloud forest, El Oro, Ecuador

Pete Oxford / Frailejones {Espeletia pycnophylla} - tall plants and {Espeletia sp.} - short plants. El Angel Ecological Reserve, 3700 m above sea level. Paramo habitat. Andes, NE Ecuador. Endemic plants to northern...

Gabriel Rojo / Fitzroy mountain, El Chatten, Patagonia, Argentina

Gavin Hellier / Elevated view over the Djemaa el-Fna at dusk, Marrakech, Morocco, North Africa, 2011

Kevin Schafer / Hand-picked Coffee Berries (Coffea arabica). El Trapiche Farm, Highlands, Santa Cruz Island, Galapagos islands, Ecuador.

Juan Manuel Borrero / Illustration of threatened species of Spain : Blue whale (Balenoptera musculus), Brown bear (Ursus arctos), Spanish ibex (Capra pyrenaica hispanica), Bullhead (Cottus gobio), Iberian Rock Lizard (Lace...

Juan Manuel Borrero / Mountain Pine (Pinus mugo uncinata ) in El Verd Mountain Range, Pyrenees, Lleida Province, Spain, June

Juan Manuel Borrero / El Verd Mountain Range landscape with pine trees, Pyrenees, Lleida Province, Spain, June 2012

Tim Fitzharris / Church and gate, El Santuario de Chimayo, New Mexico

Tim Fitzharris / Brown Pelican (Pelecanus occidentalis) on coastal rock, El Matador Beach, Malibu, California

Albert Lleal / Parasol Mushroom (Macrolepiota procera), El Montseny Natural Park, Spain

Albert Lleal / Parasol Mushroom (Macrolepiota procera) pair in forest, El Montseny Natural Park, Spain

Mark MacEwen / Spectacled Caiman eye (Caiman crocodilus) juvenile in Hato el Cedral, Los Llanos Apure State in Venezuela.

Mark MacEwen / Spectacled Caiman (Caiman crocodilus) juvenile in pool in Hato el Cedral, Los Llanos Apure State in Venezuela.

Mark MacEwen / Spectacled Caiman (Caiman crocodilus) juvenile being filmed with an innovision scope, in Hato el Cedral, Los Llanos Apure State in Venezuela.

Mark MacEwen / Spectacled Caiman (Caiman crocodilus) dead on dry lake bed on wetlands which dry up every year, Hato el Cedral, Los Llanos Apure State in Venezuela.

Wild Wonders of Europe / Widstrand / Ganado Bravo, fighting bull at sunset, El Bodan, Salamanca Region, Castilla y Leon, Spain

Wild Wonders of Europe / Widstrand / Ganado Bravo, fighting bull at sunset, El Bodan, Salamanca Region, Castilla y Leon, Spain

Wild Wonders of Europe / Widstrand / Ganado Bravo, fighting bull at sunset, El Bodan, Salamanca Region, Castilla y Leon, Spain

Floris van Breugel / Desert Gold (Geraea canescens) and Sand Verbena (Abronia villosa) flowering in Death Valley National Park, California. Only once every 3-8 years do the flowers put on such a spectacular spring show;...

Claudio Contreras / Rosy boa (Lichanura trivirgata), El Vizcaino Biosphere Reserve, Baja California Peninsula, Mexico, May.

Claudio Contreras / Yucatan Black Howler Monkey (Alouatta pigra) prehensile tail detail, El Mirador-Rio Azul National Park, Department of Peten, Guatemala, October. Endangered species.

Claudio Contreras / Zebra mosaic butterfly (Colobura dirce), El Mirador- Rio Azul National Park, Department of Peten, Guatemala, October.

Claudio Contreras / Yucatan banded gecko (Coleonyx elegans), El Mirador- Rio Azul National Park, Department of Peten, Guatemala, October.

Claudio Contreras / Campbell's Rainforest Toad (Incilius / Bufo campbelli), El Mirador Rio Azul National Park, Department of Peten, Guatemala, October.

Claudio Contreras / Royal Tern (Thalasseus maximus) in flight El Requeson, Gulf of California, Baja California Peninsula, Mexico, December.

Claudio Contreras / Double-Crested Cormorant (Phalacrocorax auritus), Royal Tern (Sterna maxima) and tourists canoeing in background, El Requeson, Gulf of California, Baja California Peninsula, Mexico, December. (Digital...

Claudio Contreras / Royal Tern (Thalasseus maximus) vocalising to another in flight, El Requeson, Gulf of California, Baja California Peninsula, Mexico, December.

Claudio Contreras / Yellow-Footed Gull (Larus livens), El Requeson, Gulf of California, Baja California Peninsula, Mexico, December.

Claudio Contreras / Brent geese (Branta bernicla), El Vizcaino Biosphere Reserve, Baja California Peninsula, Mexico, December.

Claudio Contreras / Western Grebe (Aechmophorus occidentalis), El Vizcaino Biosphere Reserve, Baja California Peninsula, Mexico, December.