Steven Kazlowski / Young Polar bear (Ursus maritimus) traveling across newly formed pack ice during autumnal freeze up, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska,...

Doug Allan / Killer Whales (Orcinus orca) spy-hopping to observe Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Free...

Doug Allan / Killer Whales (Orcinus orca) create bow wave to knock Weddell Seal (Leptonychotes weddellii) from the ice; a co-operative hunting strategy. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame bo...

Doug Allan / Killer Whales (Orcinus orca) approaching Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame bo...

Doug Allan / Snow drift over winter sea ice. Signy Island, South Orkney Islands, Antarctica, August 1980. Freeze Frame book plate page 13.

Doug Allan / Snow carved by wind, Signy Island, South Orkney Islands, Antarctica. Freeze Frame book plate page 14.

Doug Allan / Icefish (Chaenocephalus aceratus) Signy Island, South Orkney Islands, Antarctica, Freeze Frame book plate page 92

Doug Allan / Minke Whale (Balaenoptera acutorostra) at the surface in vast seascape wilderness. Antarctica, February. Freeze frame book plate page 135.

Doug Allan / Man walking in vast icy wilderness. Kong Karl's Land, Svalbard, Norway, April. Freeze frame book plate page 17.

Doug Allan / Portrait of wildlife cameraman Doug Allan in freezing conditions. Kong Karl's Land, Svalbard, Norway, March. Freeze frame book plate page 71. Model released.

Doug Allan / Climbers on summit ridge at 6,000m, Mount Illampu, Bolivia, March 2005. Freeze Frame book plate page 137.

Doug Allan / Emperor penguins {Aptenodytes forsteri} diving, Cape Washington, Antarctica. Freeze Frame book plate page 133.

Doug Allan / Emperor penguins diving {Aptenodytes forsteri} Antarctica. Emperor penguins are the bird diving champions and can acheive a depth of 500m. Humans can only descend 150m before the water pressure collap...

Doug Allan / White whales (Beluga) underwater. Arctic sea. Freeze Frame book plate page 201.

Doug Allan / Crossing a crevasse ladder in the Khumbu Icefall on Mount Everest Nepal. Model released. Freeze Frame book plate page 143.

Doug Allan / Hooded seal male display {Cystophora cristata} St Lawrence gulf, Canada. Freeze Frame book plate page 187.

Doug Allan / Leopard seal {Hydrurga leptonyx} with Adelie penguin prey underwater, Antarctica, Freeze frame book plate page 184.

Doug Allan / Weddell Seal (Leptonychotes weddellii) being thrown off ice by wave created by Killer Whales (Orcinus orca) using co-operative hunting strategy. Marguerite Bay, Antarctic Peninsula, summer. Freeze Fra...

Doug Allan / Killer Whale (Orcinus orca) spy-hopping to observe a Crabeater Seal (Lobodon carcinophagus); the whales are in search of Weddell Seals. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book p...

Doug Allan / Killer Whale (Orcinus orca), member of a pod searching for Weddell Seals (Leptonychotes weddellii) among sea ice. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book plate page 118-119.

Doug Allan / Killer Whale (Orcinus orca) observing Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book...

Doug Allan / Weddell Seal (Leptonychotes weddellii) being thrown off ice by wave created by Killer Whales (Orcinus orca) using co-operative hunting strategy. Marguerite Bay, Antarctic Peninsula, summer. Freeze Fra...

Doug Allan / Killer Whale (Orcinus orca) spy-hopping to observe Crabeater Seals (Leptonychotes weddelli); the whales are in search of Weddell Seals. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book p...

Doug Allan / Sheets of broken ice floes with two Adelie penguins (Pygocelis adeliae); the sea ice reflects heat while the open sea absorbs it, Weddell Sea, Antarctica. Freeze Frame book plate page 110

Doug Allan / Man standing beside raised footprints in the snow, caused when the wind blows away the lose snow leaving the compacted snow, Signy Island, South Orkney Islands, Antarctica, September, Freeze Frame boo...

Doug Allan / Chinstrap Penguins (Pygoscelis antarcticus) on the slopes of active volcano. Zavodoski Island, South Sandwich Group, Antarctic. Freeze Frame book plate page 157.

Doug Allan / Orange lenticular clouds above mountainous landscape. South Orkney Islands, Antarctica. Freeze Frame book plate page 65.

Doug Allan / Inuk man catching Little Auks (Alle alle) with a net from their breeding cliffs. The birds are a kiviak delicacy. Near Siorapaluk (the most northerly community in the world), Greenland, June. Freeze f...

Doug Allan / Cameraman Doug Allan filming seals with white sail for camouflage, Lake Baikal, Siberia, Russia, April 1989. Freeze Frame book plate page, 48.

Doug Allan / Giant Isopod (Isopoda). South Orkney Island, Antarctica. Freeze Frame book plate page 93.

Doug Allan / Thawing iceberg, Antarctica. Freeze Frame book plate page 83.

Doug Allan / Baikal Seal (Pusa sibirica) emerging from hole in the lake ice. Lake Baikal, Siberia, Russia. Freeze frame book plate page page 49.

Doug Allan / Cameraman Doug Allan filming Shags (Phalacrocorax aristotelis) on his first ever paid shoot. Signy Island, South Orkney Islands, Antarctica, 1984. Freeze frame book plate page 36.

Doug Allan / Flayed body of a penguin being thrashed by a Leopard Seal (Hydrurga leptonyx). Antarctic Peninsula, February. Freeze Frame book plate page 184.

Doug Allan / Gentoo Penguin (Pygoscelis papua) colony on Booth Island, Antarctic Peninsula, February. Freeze frame book plate page 105.

Doug Allan / Two young male Polar Bears (Ursus maritimus) play fighting. Hudson Bay, Churchill, Canada. Frame book plate page 99.

Doug Allan / Leopard Seal (Hydrurga leptonyx) with penguin prey at surface. Antarctic Peninsula, February. Freeze frame book plate page 184.

Doug Allan / Inuit husky dog team crossing crack in sea ice. Near Qaanaaq, Greenland. Freeze frame book plate page 161.

Doug Allan / Adult male Elephant Seal (Mirounga leonina) at the surface roaring. Antarctica, Signy Island. Freeze Frame book plate page 203.

Doug Allan / Wildlife cameraman Doug Allan prepares for a dive in hole drilled in sea ice. Ross Sea, McMurdo, Antarctica. Freeze frame book plate page 38.

Doug Allan / Adelie Penguin (Pygoscelis adeliae) chick and parent. Fish Island, Antarctic Peninsula, February. Freeze frame book plate page 191.

Doug Allan / Base hut for cameraman Doug Allan on polar bear filming expedition. Kong Karl's Land, Svalbard, Norway, March. Freeze frame book plate page 18.

Doug Allan / Snow Petrel (Pagodroma nivea) in flight over ice floes. Antarctic Peninsula, February. Freeze frame book plate page 129.

Doug Allan / Cameraman Doug Allan holding pistols, used to scare off Polar bears. Kong Karl's Land, Svalbard, April. Freeze frame book plate page 19.

Doug Allan / Wildlife cameraman Doug Allan in snow-blind, filming polar bears. Kong Karl's Land, Svalbard, Norway, April. Freeze frame book plate page 21.

Doug Allan / Submarine surfacing through ice sheet. Beaufort Sea, Alaska, USA, March. Freeze frame book plate page 131.

Doug Allan / Cameraman Doug Allan investigating a Polar Bear hibernation den. Kong Karl's Land, Svalbard, Norway, April. Freeze frame book plate page 27.

Doug Allan / Arrow signalling where a submarine will breach the ice sheet. Beaufort Sea, Alaska, USA, March. Freeze frame book plate page 130.

Doug Allan / Sunset over cold bleak landscape. Kong Karl's Land, Svalbard, Norway, April. Freeze frame book plate page 15.

Doug Allan / Polar Bear (Ursus maritimus) seen through window searching around Doug Allan's hut. Kong Karl's Land, Svalbard, April. Freeze frame book plate page 19.

Doug Allan / Two Polar Bear cubs (Ursus maritimus) emerge from their winter hibernation den. Kong Karl's Land, Svalbard, Norway. Freeze frame book plate page 23.

Doug Allan / Leopard Seal (Hydrurga leptonyx) flaying its penguin prey. Antarctica, February. Freeze frame book plate page 184.

Doug Allan / Colonies of Chinstrap and Macaroni Penguins (Eudyptes chrysolophus) on the slopes of active volcano, Zavadovski Island, South Sandwich group, Antarctica. Freeze frame book plate page 154.

Doug Allan / Glacier in Svalbard, Norwegian Arctic. Freeze Frame book plate page 88.

Doug Allan / Pancake sea ice, Signy Island, Antarctica. This is formed when slabs of ice that are forming are jostled by the wind and or movement of the sea. The pancakes of ice bash against each other around th...

Doug Allan / Rick Price filming Crabeater seals (Lobodon carcinophagus) underwater, several seals are pulling kelp from the seabed, Normanna Strait, Signy Island, South Orkney Islands, Antarctica, August, Freeze F...

Doug Allan / Adelie Penguin chicks (Pygoscelis adeliae) begging an adult for food. Antarctic Peninsula. Freeze Frame book plate page 57.

Doug Allan / Doug Allan diving underwater observing antiquarian sponges, Lake Baikal, Siberia, Russia, March, Freeze Frame book plate page 49

Doug Allan / Chinstrip Penguins (Pygoscelis antarcticus) resting on an iceberg. Zavadovski Island, South Sandwich group, Antarctica. Freeze Frame book plate page 159.

Doug Allan / Frost flowers created by small amounts of water freezing on top of newly formed sea ice, Borge Bay, Signy Island, South Orkney Islands, Antarctica, July, Freeze Frame book plate page 79

Doug Allan / Cameraman Doug Allan on location filming young Moose (Alces alces). Utchka, Siberia, Russia, March 1991. Freeze Frame book plate page 31.

Doug Allan / Doug Allan filming Leopard Seal (Hydrurga leptonyx) with Adelie penguin above, Antarctica, Freeze Frame book plate page 185

Doug Allan / Iceberg floating in front of smoking volcano. Zavadovski Island, South Sandwich group, Antarctica. Freeze Frame book plate page 153.

Doug Allan / Cameraman Doug Allan on location in Lake Baikal, Siberia, with seal hunter and motorbike with sidecar pulling sledge. April 1989, Cover image of Freeze Frame

Doug Allan / David Attenborough (left) and Doug Allan filming in Svalbard, Norway, for BBC Life of Mammals series, summer, Freeze Frame book plate page 7

Doug Allan / Southern Fur Seals (Arctocephalus gazella) underwater in kelp. South Georgia, Antarctica, November 1992. Freeze Frame book plate page 179.

Doug Allan / Snow Leopard (Panthera uncia) tracks in snow at 4000m altitude. Mountain valley near Rombuk village, Hemis National Park, Ladakh, India, January 2004. Freeze Frame book plate page 29.

Doug Allan / Humpback whale (Megaptera novaeangliae) swimming under whale-watching boat, Vava'u, Kingdom of Tonga, South Pacific, September 2006. Freeze Frame book plate page 40.

Doug Allan / Cameraman, Doug Allan, with seal hunter in motorbike with sidecar, on Lake Baikal, Siberia, Russia, April 1989. Freeze Frame book plate, front cover.

Doug Allan / Snow algae on McLeod glacier in summer, Signy Island, Antarctica, December 1979. Freeze Frame book plate page 102.

Doug Allan / Camerman Doug Allan preparing to film under sea ice, Antarctica, August 1980. Freeze Frame book plate page 38.

Doug Allan / Gentoo penguins (Pygoscelis papua) on iceberg, Weddell Sea, Antarctica, 2003. Freeze Frame book plate, inside cover.

Doug Allan / Gentoo penguins (Pygoscelis papua) on iceberg, Antarctic peninsula, February 1995. Freeze Frame book plate page 111.

Doug Allan / Doug Allan standing outside cave where he lived when filming Snow leopards for BBC series Planet Earth, Mountain valley near Rombuk village, Hemis National Park, Ladakh, India, January 2004. Freeze Fr...

Doug Allan / Rare light-coloured Antarctic / Southern fur seal (Arctocephalus gazella) South Georgia, Antarctica, October. Freeze Frame book plate page 181.

Doug Allan / Baikal seals {Pusa sibirica} several on haul out on a small rock, Ushkanyi Is, Lake Baikal, Siberia, Russia

Doug Allan / Doug Allan filming Arctic fox 2001 Svalbard, Norway, Europe 1998. Freeze Frame book plate page 8.

Doug Allan / Climber crossing crevasse using ladder. Khumbu Ice Fall Mount Everest, Nepal Himylayas. Freeze Frame book plate page 145.

Doug Allan / Sea anemone {Actiniaria} Antarctica. Freeze Frame book plate page 93.