Finalist: portfolio (professional)
Image by: Christopher Marsham
Photo title: Emperor penguin colony, Snow Hill Island ice shelf, Weddell Sea, Antarctic Peninsula
In his words: "A view of part of one of the few emperor penguin colonies on the ice shelf around Snow Hill Island. Numerous crèches can be seen, along with pairs of adults that have been reunited after a long period searching for food at sea. A few weeks later the ice will melt - the chicks will need to be fully fledged or they will face certain death."