Chadden Hunter / Entering the ice caves of Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Cameraman Jeff Turner and Producer Chadden Hunter exposed at -40 degrees in Arctic circle in Northern Canada while filming wolves and bison hunting sequence. Taken on location for BBC Frozen Planet se...

Chadden Hunter / Aerial view of Timber wolves (Canis lupus) attacking a Bison calf (Bison bison) on the Arctic circle in Northern Canada. Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Aerial view of hunting pack of Timber wolves (Canis lupus) in Arctic circle in Northern Canada, Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / King penguin (Aptenodytes patagonicus) chick creche enduring harsh weather, South Georgia. Taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / King penguins (Aptenodytes patagonicus) walk along beach, South Georgia. Taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Frozen Planet team, training on snow mobiles, Svalbard. Taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Filming on the Antarctic sea-ice at the edge of a small hole. A cameraman gets a shock when a Killer whale (Orcinus orca) mother and calf explode out of the water in front of his face. Taken on locat...

Chadden Hunter / Snow goose with gosling (Chen caerulescens) at sunset. Taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Stormy conditions outside the entrance to ice caves of Mount Erebus, Antarctica. Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / BBC filming team used the willow scrub as a blind, using sign language so as not to spook either Bison (Bison bison) or Timber wolves (Canis lupus) they were trying to film. The snowmobiles were aban...

Chadden Hunter / Getting snow off snowmobiles after successful filming of Timber wolves hunting bison, Arctic circle in northern Canada. Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Travelling across Northern Canada on skidoo, Arctic circle, Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Travelling across Northern Canada on skidoos, Arctic circle, Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Snow geese (Chen caerulescens) standing on ice, Arctic. Taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Husky dogs (Canis familiaris) linked to sledge, Northern Canada. Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Aerial view of pack of Timber wolves (Canis lupus) after successful Bison (Bison bison) hunt, Arctic circle in Northern Canada. Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Aerial view of hunting pack of Timber wolves (Canis lupus) in Arctic circle in Northern Canada, Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Herd of Bison (Bison bison) feeding in snow in Arctic Circle, Northern Canada. Taken on location for BBC Frozen Planet series, 2009

Chadden Hunter / Cameraman Martyn Colbeck filming King penguin (Aptenodytes patagonicus) chick creche / breeding colony, South Georgia. Taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Snow goose egg hatching (Chen caerulescens) taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Adelie penguins (Pygoscelis adeliae) marching to breeding site, Antarctica. Taken on location for BBC Frozen Planet series, 2010

Chadden Hunter / Snow geese goslings (Chen caerulescens) taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Cameraman Martyn Colbeck filming King penguins (Aptenodytes patagonicus) on beach, South Georgia, South Atlantic Islands. Taken on location for BBC Frozen Planet series, 2008

Chadden Hunter / Camerman, Mark Smith, scouts Himalayan valleys over 2km deep in search of the elusive snow leopard, for the Mountains Episode of the BBC tv series Planet Earth, Himalayas, northern Pakistan (on the bo...

Chadden Hunter / Cameraman, Chadden Hunter, filming rope safety expert, Tono De Vivo, describing the dangers of descending into the glacial ice caves ‘moulins', the ice caves that drain meltwater through glaciers, Gor...

Chadden Hunter / Camerman, Mark Smith, scouts Himalayan valleys over 2km deep in search of the elusive snow leopard, for the Mountains Episode of the BBC tv series Planet Earth, Himalayas, northern Pakistan (on the bo...

Chadden Hunter / Cameraman, Mark Smith, waiting patiently for a sight of the elusive Snow leopard, with a range of binoculars, telescopes and cameras all pointed towards a cave the snow leopard is thought to use, for...

Chadden Hunter / Cameraman, Ted Giffords, radios for help as an unexpected early winter storm descends on the team, the crew were working in an ice crevasse at the time, for the Mountains episode of the BBC tv series...

Chadden Hunter / Camerman, Mark Smith, carrying camera on tripod through snow, in search of the elusive snow leopard, for the Mountains Episode of the BBC tv series Planet Earth, Himalayas, northern Pakistan (on the b...