Enrique Lopez-Tapia,Enrique Lopez-Tapia / Peatland landscape in the mist, Tierra del Fuego, Argentina

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.

Heather Angel / Darwin's slipper flower (Calceolaria uniflora) in UV light. Stamens and fleshy lip that provides food reward for polliator Least seedsnipe (Thinocorus rumicivorus) fluorescing. Native to Tierra de...

Heather Angel / Darwin's slipper flower (Calceolaria uniflora) in visible light. Stamens and fleshy lip that provides food reward for polliator Least seedsnipe (Thinocorus rumicivorus) fluorescing. Native to Tier...

Ashley Cooper / Commerson's dolphin (Cephalorhynchus commersonii) swimming round a ship off the Falkland Islands. February 2014

Ashley Cooper / Peale's dolphin (Lagenorhynchus australis) bow riding off the front of a boat, Falkland Islands, South Atlantic. February.

Ashley Cooper / Commerson's Dolphin (Cephalorhynchus commersonii) swimming round a ship off the Falkland Islands. February 2014

Ashley Cooper / Commerson's Dolphin (Cephalorhynchus commersonii) swimming round a ship off the Falkland Islands. February 2014

Ashley Cooper / Commerson's Dolphin (Cephalorhynchus commersonii) swimming round a ship off the Falkland Islands. February 2014

Ashley Cooper / Sunrise over Antarctic expedition ships in the harbour of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Ashley Cooper / Sunrise over the harbour of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Ashley Cooper / Argentinian Naval vessels in the town of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Ashley Cooper / Antarctic cruise boats moored in the town of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Merryn Thomas / Ushuaia, capital of Tierra del Fuego, the Southernmost city in the world. Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Merryn Thomas / Yachts moored in Ushuaia, capital of Tierra del Fuego, Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Merryn Thomas / Ushuaia, capital of Tierra del Fuego, Southernmost city in the world. Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Gabriel Rojo / Upland goose (Chloephaga picta) Tierra del Fuego, Patagonia, Argentina

Gabriel Rojo / Southern caracara (Polyborus plancus) feeding on carcass, Tierra del Fuego, Patagonia, Argentina

Brent Stephenson / Dolphin gull (Larus scoresbii) standing on a rock yawning, on the shoreline, Ushuaia, Tierra del Fuego, South America, December.

Brent Stephenson / Male Kelp goose (Chloephaga hybrida) standing on a rock just offshore, Ushuaia, Tierra del Fuego, South America, December.

Brent Stephenson / Male Upland goose (Chloephaga picta) profile, Tierra del Fuego National Park, Tierra del Fuego, South America, December.

Ole Jorgen Liodden / Southern lapwing (Vanellus chilensis fretensis) Tierra del Fuego, Argentina, March.

Ole Jorgen Liodden / Upland goose (Chloephaga picta picta) feeding on grass, Tierra del Fuego, Argentina, February.

Ole Jorgen Liodden / Chiloe wigeon (Anas sibilatrix) on water, Tierra del Fuego, Argentina, March.

Ole Jorgen Liodden / Prow of expedition ship with water splashing around it, Drake Passage, Chile. March 2006.

Ole Jorgen Liodden / Andean fox (Lycalopex culpaeus) portrait, Tierra del Fuego, Argentina.

Ole Jorgen Liodden / Black-chested buzzard-eagle (Geranoaetus melanoleucus) immature, perched on snag, Tierra del Fuego, Argentina

Michael Hutchinson / Ushuaia in front of Martial mountains, Tierra del Fuego, Argentina, January.

Michael Hutchinson / Ushuaia in front of Martial mountains, Tierra del Fuego, Argentina, January.

Michael Hutchinson / Ushuaia in front of Martial mountains, Tierra del Fuego, Argentina, January.

Pete Oxford / Magellanic Tuco-tuco (Ctenomys magellanicus) at burrow, Tierra Del Fuego, Chile

Pete Oxford / Magellanic Tuco-tuco (Ctenomys magellanicus) at burrow, Tierra Del Fuego, Chile

Pete Oxford / Docked ferry boat, Strait of Magellan, Tierra Del Fuego, Chile

Pete Oxford / Docked ferry boat, Strait of Magellan, Tierra Del Fuego, Chile

Tim Laman / View across the Beagle Channel from Tierra del Fuego, South America, February 2011.

David Tipling / Southern Lapwing (Vanellus chilensis) male calling in flight, Tierra del Fuego, Argentina, November.

Kevin Schafer / Spring snowfall on sheer cliff, Garibaldi Fjord, Tierra del Fuego, Chile

Kevin Schafer / Blue-eyed Cormorant (Phalacrocorax atriceps) pair on cliff, Garibaldi Fjord, Tierra del Fuego, Chile

Enrique Lopez-Tapia / Fallen tree cut by a North American beaver (Castor canadensis) an invasive species (introduced for fur trade) Tierra del Fuego, Argentina

Enrique Lopez-Tapia / Peatland landscape in the mist, Tierra del Fuego, Argentina

Enrique Lopez-Tapia / Peatland landscape in Tierra del Fuego with North American beaver (Castor canadensis) dam, an invasive species (introduced for fur trade). Argentina

Enrique Lopez-Tapia / American Beaver (Castor canadensis) dam, an invasive species (introduced for fur trade) in wetlands. Tierra del Fuego National Park.

Enrique Lopez-Tapia / Lenga beech forest (Nothofagus pumilio) Tierra del Fuego National Park. Argentina.

Enrique Lopez-Tapia / Tourists walking through footpath in Lenga beech forest (Nothofagus pumilio) Tierra del Fuego National Park. Argentina.

Enrique Lopez-Tapia / Sign for Lapataia Bay, Tierra del Fuego National Park. Argentina

Enrique Lopez-Tapia / Boat moored in the Beagle Channel (named after visit of the HMS Beagle and Darwin) between Chilean and Argentinian areas of Tierre del Fuego

Enrique Lopez-Tapia / View from aboard boat navigating the Beagle Channel (named after visit of the HMS Beagle and Darwin) between Chilean and Argentinian areas of Tierre del Fuego

Enrique Lopez-Tapia / Drawings of penguins on a mural in downtown Ushuaia, Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Busy street in the city centre of Ushuaia, Tierra del Fuego, Argentina

Enrique Lopez-Tapia / Traffic sign warning of penguins crossing. Ushuaia, Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Merchant ship in the Beagle Channel (named after visit of the HMS Beagle and Darwin) Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Merchant ship in the Beagle Channel (named after visit of the HMS Beagle and Darwin) Tierra del Fuego, Argentina

Enrique Lopez-Tapia / Frigate boat moored in Ushuaia harbour, Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Frigate boat moored in Ushuaia harbour, Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Frigate boats moored in Ushuaia harbour, Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Sailing boat moored in the Beagle Channel (named after visit of the HMS Beagle and Darwin), Tierra del Fuego, Argentina.

Enrique Lopez-Tapia / Beagle Channel (named after visit of the HMS Beagle and Darwin) between Chilean and Argentinian areas of Tierra del Fuego

Matthias Breiter / Patagonian Sierra-Finch (Phrygilus patagonicus), Tierra del Fuego National Park, Argentina

Matthias Breiter / Park sign, Tierra del Fuego National Park, Argentina

Matthias Breiter / Upland Goose (Chloephaga picta) male bathing, Estancia Harberton, Tierra del Fuego, Argentina

Matthias Breiter / Upland Goose (Chloephaga picta) male in water, Estancia Harberton, Tierra del Fuego, Argentina

Matthias Breiter / Upland Goose (Chloephaga picta) male in water, Estancia Harberton, Tierra del Fuego, Argentina

Mark Carwardine / South American / Patagonian sealions on coast {Otaria flavescens} Tierra del Fuego, Argentina

Mark Carwardine / Magellanic / Jackass penguin colony {Spheniscus magellani} Tierra del Fuego,

Mark Carwardine / Magellanic / Jackass penguin colony {Spheniscus magellani} Tierra del Fuego,

Mark Carwardine / South American / Patagonian sealions on coast {Otaria flavescens} Tierra del Fuego, Argentina

Konrad Wothe / Ushuaia harbour, southernmost citiy of Argentina, Beagle-Channel, Tierra del Fuego, Argentina, South America. February 2007.

Konrad Wothe / Chapel and chilean flag at Cape Horn, Cape Horn National Park, Cape Horn Island, Terra del Fuego, Chile, South America. February

Konrad Wothe / Ushuaia, Southernmost city of Argentina, Beagle-Channel, Tierra del Fuego, Argentina, South America

Rick Tomlinson / SY "Adele", 180 foot Hoek Design, docked in Ushuaia during her expedition around Antarctica, January 2007. Non editorial uses must be cleared individually.

Brent Stephenson / South American Tern (Sterna hirundinacea) in breeding plumage, flying in evening light. Beagle Channel, Tierra del Fuego Archipelago, South America, January.

Brent Stephenson / Three Black-faced Ibis (Theristicus melanopis) in flight. Over the Beagle Channel, Tierra del Fuego Archipelago, South America, January.

Brent Stephenson / Three Black-faced Ibis (Theristicus melanopis) in flight. Over the Beagle Channel, Tierra del Fuego Archipelago, South America, January.

Brent Stephenson / Evening sun catching the clouds with snow-clad mountains. Beagle Channel, Tierra del Fuego Archipelago, South America, December.

Brent Stephenson / Clouds cloaking the shore of the Beagle Channel, Tierra del Fuego Archipelago, South America, December.

Rod Williams / Patagonian Crested Duck (Anas / Lophonetta specularoides specularoides) portrait. Captive. Endemic to Chile, Argentina, Tierra del Fuego and the Falkland Islands. UK, April.

Bryan and Cherry Alexander / Antarctic beech (Nothofagus antarctica) by the shore at Bahia Lapataia, Tierra del Fuego National Park. Argentina, October 2006.

Bryan and Cherry Alexander / Antarctic beech (Nothofagus antarctica) by the shore at Bahia Lapataia, Tierra del Fuego National Park. Argentina, October 2006.

Bryan and Cherry Alexander / Walkers descending along the trail between Antarctic Beech and Bahia Lapataia, Tierra del Fuego National Park, Argentina, October 2006.

Bryan and Cherry Alexander / Boardwalks along the shore at Bahia Lapataia, Tierra del Fuego National Park. Argentina, October 2006.

Bryan and Cherry Alexander / Beech trees (Nothofagus sp) with Darwin's fungus (Cyttaria darwinni) growing on the branches, Tiera del Fuego NP, Argentina, October.

Doug Allan / Lonnberg's skua (Stercorarius antarcticus lonnbergi) sitting on nest near Ushuaia, Beagle Channel, Tierra del Fuego, Argentina.

Roy Mangersnes / Ringed Kingfisher (Megaceryle / Ceryle torquata) perched, Tierra Del Fuego, Argentina, South America. November.

Roy Mangersnes / Black-chinned Siskin (Carduelis barbata) pair in scrubland, Tierra Del Fuego, Argentina, South America. November.

Roy Mangersnes / Black-faceD Ibis (Theristicus melanopis) Tierra Del Fuego, Argentina, South America. November.

Roy Mangersnes / Black-faces Ibis (Theristicus melanopis) stretching wings, Tierra Del Fuego, Argentina, South America. November.

Roy Mangersnes / Flying Steamerduck (Tachyeres patachonicus) pair of the coast of Tierra Del Fuego, Argentina, South America. November.

Tui De Roy / Upland Goose (Chloephaga picta) pair in grassland, Tierra del Fuego National Park, Argentina

Tui De Roy / Southern Lapwing (Vanellus chilensis), Ushuaia, Tierra del Fuego, Argentina

Tui De Roy / Southern Lapwing (Vanellus chilensis), Ushuaia, Tierra del Fuego, Argentina

Tui De Roy / Patagonian Sierra-Finch (Phrygilus patagonicus), Ushuaia, Tierra del Fuego, Argentina

Tui De Roy / Magellanic Woodpecker (Campephilus magellanicus) male at nest entrance, in Southern Beech (Nothofagus sp), Tierra del Fuego National Park, Argentina

Tui De Roy / Magellanic Woodpecker (Campephilus magellanicus) male in Southern Beech (Nothofagus sp) forest, Tierra del Fuego National Park, Tierra del Fuego, Argentina

Tui De Roy / Magellanic Woodpecker (Campephilus magellanicus) male in Southern Beech (Nothofagus sp) forest, Tierra del Fuego National Park, Tierra del Fuego, Argentina

Tui De Roy / Magellanic Woodpecker (Campephilus magellanicus) female in Southern Beech (Nothofagus sp) forest, Ushuaia, Tierra del Fuego, Argentina

Tui De Roy / Magellanic Woodpecker (Campephilus magellanicus) male in Southern Beech (Nothofagus sp) forest, Tierra del Fuego National Park, Tierra del Fuego, Argentina