Mark Carwardine / Three Gentoo Penguins (Pygoscelis papua) standing at the edge of sea ice. Antarctic Peninsula, January. Book plate from Mark Carwardine's Ultimate Wildlife Experiences.
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Bryan and Cherry Alexander / Emperor penguin (Aptenodytes forsteri) chick by a line of photographers. Snow Hill Island, Antarctica, October.
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Bryan and Cherry Alexander / Emperor penguin (Aptenodytes forsteri) chick spreads tiny wings next to parent. Snow Hill. Antarctica, October.
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Bryan and Cherry Alexander / Iceberg and grease ice reflecting in the Weddell Sea at sunset. Antarctica, October 2006.
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Tim Laman / Large iceberg in Cierva Cove, Antarctica, at dusk, February 2009
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Suzi Eszterhas / Adelie Penguin (Pygoscelis adeliae) jumping off iceberg, Paulet Island, Antarctica
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Frederique Olivier / Weddell seal (Leptonychotes weddellii) pup in blizzard, Antarctica, Taken on location for the BBC series, Frozen Planet.
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Bryan and Cherry Alexander / Snow capped Cape Renard at the north end of the Lemaire Channel, Antarctica.
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Bryan and Cherry Alexander / Visitors taking in the view at Port Charcot, Booth Island, Antarctica, February 2009.
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Bryan and Cherry Alexander / Booth Island illuminated by shafts of sunshine through the cloud. Lemaire Channel, Antarctica, February 2009.
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Bryan and Cherry Alexander / Tourist joking in front of the icebreaker "Kapitan Khlebnikov", Antarctica, October 2006.
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Bryan and Cherry Alexander / Emperor penguins (Aptenodytes forsteri), probably non breeders, investigating a dead chick. Snow Hill Island, Antarctica, October.
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Bryan and Cherry Alexander / Tourist photographing a group of Emperor penguins (Aptenodytes forsteri). Snow Hill Island, Antarctica, October.
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Bryan and Cherry Alexander / Tabular iceberg reflected at sunset in Erebus and Terror Gulf. Weddell Sea, Antarctica, October 2006.
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Bryan and Cherry Alexander / Textured tabular iceberg reflecting in the Weddell Sea at sunset. Antarctica, October 2006.
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Bryan and Cherry Alexander / Iceberg and grease ice reflecting in the Weddell Sea at sunset. Antarctica, October 2006.
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Bryan and Cherry Alexander / Iceberg and grease ice reflecting in the Weddell Sea at sunset. Antarctica, October 2006.
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Bryan and Cherry Alexander / Icebergs in the Weddell Sea at sunset. Antarctica, October 2006.
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Bryan and Cherry Alexander / Woman using the field toilet at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.
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Troels Jacobsen/Arcticphoto / A group of Rockhopper Penguins (Eudyptes chrysocome). The world population of Northern Rockhopper has declined by 90% in the past 60 years. Quest Bay, Gough Island. UNESCO World Heritage site, March.
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Peter Scoones / Male Antarctic fur seal portrait {Arctocephalus gazella} Antarctica
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Peter Scoones / Rough seas, Antarctic Stormy
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Roberto Rinaldi / Adelie penguins (Pygoscelis adeliae) on a weathered iceberg, Antarctic Peninsula.
