Vincent Grafhorst / Mountain view with the sentinel of the Amphitheatre in the background and ferns in the foreground, Royal Natal National Park, South Africa

Vincent Grafhorst / Bugle-lily (Watsonia sp) flowering with the eastern peak of the Amphitheatre in the background, Royal Natal National Park, South Africa

Vincent Grafhorst / Bugle-lily (Watsonia sp) flowering with the eastern peak of the Amphitheatre in the background, Royal Natal National Park, South Africa

Vincent Grafhorst / Bugle-lily (Watsonia sp) flowering on a mountain slope, Royal Natal National Park, South Africa

Vincent Grafhorst / Mountain landscape with field of ferns, Royal Natal National Park, South Africa

Vincent Grafhorst / Mountain landscape, Royal Natal National Park, South Africa

Vincent Grafhorst / Mountain landscape with field of ferns, Royal Natal National Park, South Africa

Vincent Grafhorst / Sentinel Peak, Royal Natal National Park, South Africa

Vincent Grafhorst / Early morning light on Sentinel Peak of the Amphitheatre in the background, Royal Natal National Park, South Africa

Vincent Grafhorst / Amphitheatre with Tugela River in foreground, Royal Natal National Park, South Africa. Sequence 2 of 2

Vincent Grafhorst / Amphitheatre with dry Tugela River in foreground, Royal Natal National Park, South Africa. Sequence 1 of 2

Vincent Grafhorst / Fresh green grass and trees on sloping hillside, Royal Natal National Park, South Africa

Colin Monteath / Lake Coleridge and snow-covered Craigieburn Range, Canterbury, New Zealand

Colin Monteath / River descends from Southern Alps towards Waimakariri River, Arthur's Pass National Park, New Zealand

Pete Oxford / Andes with glaciers in early spring, southern Chile

Tony Heald / Verreaux's / Black eagle {Aquila verreauxii} juvenile in flight, Giants Castle, South Africa

Hanne & Jens Eriksen / Common / Southern mountain viscacha {Lagidium viscacia} Lauca NP, Chile

Tony Heald / Lanner falcon {Falco biarnicus} female perched on cliff, Giants Castle, South Africa

Pete Oxford / Common / Southern mountain viscacha {Lagidium viscacia} on rocks at Machu Picchu, Peru

Pete Oxford / Common / Southern mountain viscacha {Lagidium viscacia} Lauca NP, Chile

Colin Monteath / Mount Tasman and Mount Cook, Southern Alps, New Zealand

Ingo Arndt / Antarctic Fur Seal (Arctocephalus gazella) pups, Stromness Bay, South Georgia Island

Ingo Arndt / Antarctic Fur Seal (Arctocephalus gazella) in tussock grass, Gold Harbor, South Georgia Island

Tim Laman / Blue Bird of Paradise (Paradisaea rudolphi) female foraging in rainforest canopy in the vicinity of the Tari Valley, Southern Highlands Province, Papua New Guinea.

Tim Laman / Superb Bird of Paradise (Lophorina superba) female foraging for fruit in rainforest canopy in the vicinity of the Tari Valley, Southern Highlands Province, Papua New Guinea.

Tim Laman / Blue Bird of Paradise (Paradisaea rudolphi) male in rainforest canopy in the vicinity of the Tari Valley, Southern Highlands Province, Papua New Guinea.

Tim Laman / Blue Bird of Paradise (Paradisaea rudolphi) female foraging for fruit in the rainforest canopy in the vicinity of the Tari Valley, Southern Highlands Province, Papua New Guinea.

Tim Laman / Lawes' Parotia Bird of Paradise (Parotia lawesii) female foraging for fruit in rainforest canopy in the vicinity of the Tari Valley. Southern Highlands Province, Papua New Guinea.

Tim Laman / Blue Bird of Paradise (Paradisaea rudolphi) male perched in the vicinity of the Tari Valley, Southern Highlands Province, Papua New Guinea.

Tim Laman / Blue Bird of Paradise (Paradisaea rudolphi) male in rainforest canopy in the vicinity of the Tari Valley, Southern Highlands Province, Papua New Guinea.

Tim Laman / Hercules /Australian atlas moth (Coscinocera hercules) in the wild in Southern Highlands Province, Papua New Guinea.

Tim Laman / Tari valley girl looking after her younger sibling, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea, September 2006

Tim Laman / Great wood swallow (Artamus maximus) perched on top of a hut, Ambua, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Yellow billed lorikeet (Neopsittacus musschenbroekii) in tree, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Belford's honeyeater (Melidectes belfordi) near Tari Valley, Southern Highlands Province, Papua New Guinea

Tim Laman / Bronze ground dove (Gallicolumba beccarii) visiting the display court of a Lawes' parotia (Parotia lawesii) near Tari Valley, Southern Highlands Province, Papua New Guinea

Tim Laman / Edwin Scholes crossing a vine bridge over a stream in montane rainforest, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea, September 2006

Tim Laman / Vine bridge over a stream in montane rainforest, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea, September 2006

Tim Laman / Black and white fantail (Rhipidura leucophrys) perched on a leaf, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Spiny backed spider (Gasteracatha sp) on dew covered web, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Grasshopper camouflaged on a moss covered tree trunk, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Black billed cuckoo dove (Macropygia nigrirostris) perched in a tree, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Black billed cuckoo dove (Macropygia nigrirostris) perched in a tree, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Aerial view of the Southern Highlands, Tari Valley, Southern Highlands Province, Papua New Guinea, September 2006

Tim Laman / Rufous-backed Honeyeater (Ptiloprora guisei) Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Tawny grassbird (Megalurus timoriensis) on grass stem, Tari Valley vicinity, Southern Highlands Province, Papua New Guinea

Tim Laman / Cloud formations at sunset, Tari Gap, Southern Highlands Province, Papua New Guinea

Piotr Naskrecki / Dicot (Euphorbia sp) in fynbos habitat, Cederberg Wilderness Area, South Africa

Piotr Naskrecki / Katydid (Conocephalus sp) camouflaged on grass, Golden Gate Highlands National Park, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) forest covering valley slopes, Modjadji Cycad Reserve, South Africa

Piotr Naskrecki / Modjadji Cycad (Encephalartos transvenosus) forest covering valley slopes, Modjadji Cycad Reserve, South Africa

Tim Laman / Traditional feathered headdress of Huli Wigmen from the Tari area, Southern Highlands Province. Mount Hagen, Western Highlands Province, Papua New Guinea. September 2004

Tim Laman / Child of the Huli Wigman from Tari area, Southern Highlands Province. Goroka, Eastern Highlands Province, Papua New Guinea. September 2004

Tim Laman / Traditional jewellry made from Hornbill beak worn by Huli Wigmen from Tari area, Southern Highlands Province, Papua New Guinea. September 2004

Tim Laman / Traditional feathered headdress of Huli Wigmen from the Tari area, Southern Highlands Province. Mount Hagen, Western Highlands Province, Papua New Guinea. September 2004

Tim Laman / Traditional feathered headdress of Huli Wigmen from Tari area, Southern Highlands Province. Goroka, Eastern Highlands Province, Papua New Guinea. September 2004

Michael & Patricia Fogden / Natural arch at Spitzkoppe, Damaraland, Namib Desert, Namibia

Michael & Patricia Fogden / Spitzkoppe granite outcrop in southern Damaraland, Namib Desert, Namibia

Michael & Patricia Fogden / Spitzkoppe granite outcrop in southern Damaraland with ephemeral pool after good rain, Namib Desert, Namibia

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing away another male from females, St. Andrews Bay, South Georgia Island

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing away another male from females, St. Andrews Bay, South Georgia Island

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull chasing away another male from females, St. Andrews Bay, South Georgia Island

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) group on beach during breeding season, St. Andrews Bay, South Georgia Island

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) walking past Southern Elephant Seals (Mirounga leonina), St. Andrews Bay, South Georgia Island

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull on beach during breeding season, St. Andrews Bay, South Georgia Island

Tony Heald / Cape vultures {Gyps coprotheres} fighting. Giants Castle, South Africa

Tim Fitzharris / California Poppy (Eschscholzia californica) covered hillside, spring, Tehachapi Hills near Gorman, California

Rob Brown / Sunset on Mount Cook, Southern Alps, New Zealand

Nick Groves / Southern Alps looking south from Mount Fox, West Coast, South Island, New Zealand

Nick Groves / Clouds above Mount Cook, Mount Cook National Park, Southern Alps, New Zealand

Robert Valentic / Southern / Yellow bellied water skink {Eulamprus heatwolei} male basking on streamside bedrock, Southern Highlands, New South Wales, Australia

Colin Monteath / South American Sea Lion (Otaria flavescens) breeding colony, Hoste Island, Tierra del Fuego, Chile

Thomas Mangelsen / Southern Elephant Seal (Mirounga leonina) group and King Penguins (Aptenodytes patagonicus) on the beach, South Georgia Island

Richard Du Toit / Hikers on Lion's Head, Cape Town, South Africa

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) crowded rookery along river and near sea, in golden evening light, St Andrews Bay, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) chicks in river near rookery, against backdrop of snowy Allardyce Range, St Andrews Bay, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / Cumulus clouds over calm harbor and green mountain slopes, sea coast in early fall, evening, Prince Olav Harbour, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) juveniles play fighting on beach near King Penguin (Aptenodytes patagonicus) rookery, Allardyce Range in background, fall, St Andrews Bay, South Georgia Islan...

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) rookery with rafts of birds swimming and washing to clean their feathers, Allardyce Range in background, fall, St Andrews Bay, South Georgia Island, Southern Oce...

Yva Momatiuk & John Eastcott / Nordenskjold Glacier, Cumberland East Bay, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) swimming near beach and coastal rocks, fall morning, St Andrews Bay, Allardyce Range in background, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / Twitcher Glacier beneath mountains of Salversen Range with bergy bits melted from calving chunks of ice, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) big and crowded rookery with tens of thousands of birds, Right Whale Bay, South Georgia Island, Southern Ocean, Antarctic Convergance South Georgia Island

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) and Antarctic Fur Seal (Arctocephalus gazella) pups and subadults in sea surf and on beach, fall morning, Right Whale Bay, South Georgia Island, Southern Ocean,...

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) and Antarctic Fur Seal (Arctocephalus gazella) pups and subadults in sea surf and on beach, fall morning, Right Whale Bay, South Georgia Island, Southern Ocean,...

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) and Antarctic Fur Seal (Arctocephalus gazella) pups and subadults in surf and on beach, fall morning, Right Whale Bay, South Georgia Island, Southern Ocean, Anta...

John Downer / Inyangombe Falls, Nyanga, Eastern Highlands, Zimbabwe

Tony Heald / Cape vulture {Gyps coprotheres} Giants Castle, South Africa

Patricio Robles Gil / Skeleton Coast at sunset, Namibia

Patricio Robles Gil / Pyrenean Chamois (Rupicapra pyrenaica pyrenaica) pair climbing in the Ordesa National Park, Pyrennes, Spain

Colin Monteath / Antarctic Beech (Nothofagus moorei) trees in autumn with Cerro Torre towers behind, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Antarctic Beech (Nothofagus moorei) trees in autumn with Cerro Torre towers behind, Los Glaciares National Park, Patagonia, Argentina

Ian Lockwood / Nilgiri tahr {Hemitragus hylocrius} female, Eravikulam NP, Kerala, Southern India

Ian Lockwood / Nilgiri tahr {Hemitragus hylocrius} female and juvenile male, Eravikulam NP, Kerala, Southern India

Pete Oxford / Rock hyrax {Procavia capensis} Cape Point NP, South Africa.

Mark Brownlow / Looking over edge of Angel Falls, world's tallest waterfall, southern Venezuela, South America November 2005, BBC Planet Earth