HGP407755: Hall i' th' wood, Bolton, Lancashire (photo) / Bridgeman Images

HGP407765: Tow crest (photo) / Bridgeman Images

NSP407906: Humpback whale lunge feeding, Megaptera novaeangliae, and gulls (photograph) / Bridgeman Images

NSP407907: Rainbow over Bryce Canyon National Park (photo) / Bridgeman Images

NSP407911: Male walrus rests on a drifting piece of pack ice (photo) / Bridgeman Images

NSP407912: Detail of male walrus bristles (photo) / Bridgeman Images

NSP407919: Gentoo penguin, February 2005 (photo) / Bridgeman Images

NSP407921: Gentoo penguin, February 2005 (photo) / Bridgeman Images

NSP407923: Humpback whale 'head lunging', during filming for 'Planet Earth', September 2005 (photo) / Bridgeman Images

NSP407931: Fluke of a humpback whale, during filming for 'Planet Earth', September 2005 (photo) / Bridgeman Images

NSP407936: Humpback whale mother and calf, during filming for 'Planet Earth', September 2005 (photo) / Bridgeman Images

NSP407939: Female Eider duck eating an urchin near Sanikiluaq, during filming for 'Planet Earth', March 2006 (photo) / Bridgeman Images

NSP407947: Weddell seal lying on ice floe (photo) / Bridgeman Images

NSP407948: Aerial view of an iceberg, majority of the berg visible under the water (photo) / Bridgeman Images

NSP407952: Peyto Lake (photo) / Bridgeman Images

NSP407954: Polar bear mother and cubs on sea ice, en route to North Pole, July 2007 (photo) / Bridgeman Images

NSP407958: Auks, kittiwakes and guillemots nesting on columnar basalt off Hooker Island (photo) / Bridgeman Images

NSP407962: Lone polar bear in the Arctic Ocean, en route to North Pole, July 2007 (photo) / Bridgeman Images

NSP407965: Russian nuclear icebreaker Yamal travelling through ice en route to the North Pole (photo) / Bridgeman Images

NSP407973: Woman of the Himba tribe carrying a baby (photo) / Bridgeman Images

NSP407977: Young girl of the Himba tribe (photo) / Bridgeman Images

NSP407986: Aerial view of a hot air balloon flight near Sossusvlei (photo) / Bridgeman Images

NSP407987: Tree in the desert (photo) / Bridgeman Images

NSP407993: Sable Antelope (photo) / Bridgeman Images

NSP408005: Male walrus on sea ice, July 2008 (photo) / Bridgeman Images

NSP408008: First contact during a total solar eclipse, 1 August 2008 (photo) / Bridgeman Images

NSP408011: Thin crescent as the sun returns after totality during a solar eclipse, 1 August 2008 (photo) / Bridgeman Images

NSP408017: Close up view of an adult emperor penguin at the rookery (photo) / Bridgeman Images

NSP408022: Emperor penguin chick at the rookery (photo) / Bridgeman Images

NSP408082: Fluke of a humpback whale (photo) / Bridgeman Images

NSP408084: Giraffes drinking at a waterhole (photo) / Bridgeman Images

NSP408089: Emperor penguin at the rookery, November 2009 (photo) / Bridgeman Images

NSP408091: Emperor penguin at the rookery, November 2009 (photo) / Bridgeman Images

NSP408099: Tins of oatmeal (photo) / Bridgeman Images

NSP408100: Box of dog biscuits (photo) / Bridgeman Images

NSP408101: View of the interior (photo) / Bridgeman Images