David Shale / Hydromedusa/ Trachymedusa (Crossota sp) from approx 2700m, mid Atlantic ridge, June 2010

Solvin Zankl / Baby Olive Ridley sea turtle (Lepidochelys olivacea) struggles against the swell to swim away from the beach where it hatched, Ostional, Costa Rica. October. Winner of the Underwater category of the G...

Steven Kazlowski / Polar bear (Ursus maritimus) on sea ice, off the coast of Svalbard, Norway

Ingo Arndt / Christmas Island Red Crabs (Gecarcoidea natalis) massing on coastal rocks, the morning after spawning, Christmas Island, Indian Ocean, Australian Territory

Ingo Arndt / Christmas Island Red Crabs (Gecarcoidea natalis) shortly before sunrise sitting on rock ready for spawning, Christmas Island, Indian Ocean, Australian Territory

Ingo Arndt / View from Margaret Knoll lookout of sunset and rain clouds over the Indian Ocean and the east coast of Christmas Island, Indian Ocean, Australian Territory, December 2009.

Ingo Arndt / Antarctic Fur Seal (Arctocephalus gazella) bull on land, Stromness Bay, South Georgia Island, Southern Ocean, Antarctic Convergence, November 2008

Ingo Arndt / King Penguin (Aptenodytes patagonicus) plumage detail, St Andrews Bay, South Georgia Island, Southern Ocean, Antarctic Convergence.

Ingo Arndt / A large group of King Penguin (Aptenodytes patagonicus) moulting, St Andrews Bay, South Georgia Island, Southern Ocean, Antarctic Convergence.

Benoit Stichelbaut / Fleet racing at Spi Ouest-France, La Trinite sur Mer, Brittany, France. April 2010.

Rick Tomlinson / Melges 32 "Fantastica" and "Sambs Pa Ti" racing at the Miami Grand Prix, Florida, USA. March 2010.

Juergen Freund / Bungalows of Misool Eco Resort as night falls. Misool, Raja Ampat, West Papua, Indonesia, January 2010.