Norbert Wu / Scuba diver exploring ice caves below Weddell Seal (Leptonychotes weddellii) breathing holes, life below feeds on seal feces, Antarctica
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Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) parents with chick, Paradise Bay, Antarctica Peninsula, Antarctica
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Tui De Roy / Emperor Penguin (Aptenodytes forsteri) group tobogganing across vast distance of fast ice to nesting rookery, Kloa Point, Edward VIII Gulf, Antarctica
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Suzi Eszterhas / Gentoo Penguin (Pygoscelis papua) pair porpoising off Cuverville Island, Antarctica
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Tui De Roy / Gentoo Penguin (Pygoscelis papua) group with icebergs, Couverville Island, Antarctic Peninsula, Antarctica
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Mitsuaki Iwago / Crabeater Seal (Lobodon carcinophagus) group resting on snow, Antarctica
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Flip de Nooyer / Crabeater Seal (Lobodon carcinophagus) group resting on ice, Antarctica
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Flip de Nooyer / Gentoo Penguin (Pygoscelis papua) pair nesting, Port Lockroy on Wiencke Island, Gerlache Strait, Antarctica
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Konrad Wothe / Emperor Penguin (Aptenodytes forsteri) three penguins standing in snow at waters edge, Antarctica
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Konrad Wothe / Crabeater Seal (Lobodon carcinophagus) resting on ice, Paradise Bay, Antarctica
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Tui De Roy / Ross Seal (Ommatophoca rossii) in dense pack ice habitat, Lazarev Sea, Princess Astrid Coast, East Antarctica
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Norbert Wu / Ice cave below Weddell Seal (Leptonychotes weddellii) breathing holes are filled with Sea Stars (Odontaster validus) and other life which feed on Seal feces, Antarctica
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Norbert Wu / Ice cave below Weddell Seal (Leptonychotes weddellii) breathing holes is filled with Sea Stars (Odontaster validus) which feed on Seal feces, Antarctica
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Norbert Wu / Weddell Seal (Leptonychotes weddellii) at breathing hole, they sometimes fight to protect breathing holes, peering down to scan for rivals, Antarctica
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Norbert Wu / Weddell Seal (Leptonychotes weddellii) mother and pup, Antarctica
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Tui De Roy / Gentoo Penguin (Pygoscelis papua) nesting colony on granite outcrop, Petermann Island, Antarctic Peninsula, Antarctica
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Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) parents with chick, Paradise Bay, Antarctica Peninsula, Antarctica
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Tui De Roy / Emperor Penguin (Aptenodytes forsteri) group tobogganing across vast distance of fast ice to nesting rookery, Kloa Point, Edward VIII Gulf, Antarctica
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Tui De Roy / Emperor Penguin (Aptenodytes forsteri) group tobogganing across vast distance of fast ice to nesting rookery, Kloa Point, Edward VIII Gulf, Antarctica
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Tui De Roy / Crabeater Seal (Lobodon carcinophagus) group hauled out on ice floe, Peterman Island, Antarctica Peninsula, Antarctica
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Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) nesting on boulders overlooking large colony in volcanic crater, Deception Island, South Shetland Islands, Antarctica
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Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) colony of 75,000 pairs nesting along volcanic crater rim, Deception Island, South Shetland Islands, Antarctica
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Norbert Wu / Weddell Seal (Leptonychotes weddellii) group near breathing entry and exit holes, seals maintain the holes with their teeth, Antarctica
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Tui De Roy / Emperor Penguin (Aptenodytes forsteri) colony in austral spring, Atka Bay, Princess Martha Coast, Weddell Sea, Antarctica
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Flip Nicklin / Chinstrap Penguin (Pygoscelis antarctica) group on iceberg, Palmer Peninsula, Antarctica
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Jan Vermeer / Chinstrap Penguin (Pygoscelis antarctica) groups on ice floes, Southern Thule, South Sandwich Islands, Antarctica
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Mitsuaki Iwago / Crabeater Seal (Lobodon carcinophagus) trio resting on ice float, Antarctica
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Tui De Roy / Emperor Penguin (Aptenodytes forsteri) rookery on ice among frozen icebergs, Atka Bay, Princess Martha Coast, Weddell Sea, Antarctica
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Tui De Roy / Chinstrap Penguin (Pygoscelis antarctica) group on beach near nesting colony, Deception Island, South Shetland Islands, Antarctica
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Tui De Roy / Emperor Penguin (Aptenodytes forsteri) large rookery on sea ice, Atka Bay, Princess Martha Coast, Weddell Sea, Antarctica