David Tipling / Emperor Penguin (Aptenodytes forsteri) walking across the sea ice of Weddell Sea, near Snow Hill Island, Antarctica, November

David Tipling / Kapitan Klebnikov, an ice breaker, growing through ice in the Weddell Sea near Snow Hill Island, Antarctica, November 2006

David Tipling / Emperor Penguins on sea ice with Kaptan Klebnikov ice breaker in background, Snow Hill Island, Antarctica, November

David Tipling / Person in purple coat photographing Emperor Penguins (Aptenodytes forsteri) at the Dawson-Lambton Glacier, Weddell Sea, Antarctica. No release available.

David Tipling / Emperor Penguins, (Aptenodytes forsteri), young huddling together to form a creche to keep warm, during storm, Dawson Lambton Glacier, Weddell Sea, Antarctica

David Tipling / Emperor Penguin, (Aptenodytes forsteri) with chick, Weddell Sea, Antarctica, November

David Tipling / King Penguin, (Aptenodytes patagonicus) standing on beach, St Andrews Bay, South Georgia, January

David Tipling / Tents in a storm with 75 mile per hour winds, at Patriot Hills, Antarctica

David Tipling / King Penguin (Aptenodytes patagonicus) colony with chicks, Gold Harbour, South Georgia, November

David Tipling / King Penguin, (Aptenodytes patagonicus), St Andrews Bay, South Georgia, January

David Tipling / King Penguins (Aptenodytes patagonicus) on beach, Gold Harbour, South Georgia, November

David Tipling / Chinstrap Penguins (Pygoscelis antarcticus) on blue iceberg, Antarctica