Andy Rouse / King penguin (Aptenodytes patagonicus) male protecting female from another male, Falkland Islands

Andy Rouse / Gentoo penguin (Pygoscelis papua) group on iceberg, Mikkelsen Harbour, Antarctica

Wild Wonders of Europe / Novák / Barnacle goose (Branta leucopsis) flock in flight at sunset, Westerhever, Germany, April 2009

Solvin Zankl / Female Olive ridley sea turtle (Lepidochelys olivacea) swimming from the open ocean towards the beach of Ostional, Costa Rica, Pacific Ocean to gather for an arribada (mass nesting event). November

Floris van Breugel / Twilight descends on photographer's mountain camp with light inside tent, in Oregons highest mountain forest on Drake Peak at 8,500 feet. Oregon, USA, January 2010.

Toby Roxburgh / Cleaning and processing of King scallops (Pecten genus) prior to auction at Brixham Harbour, Devon, England, UK, 2009.

Eric Baccega / Grizzly bear (Ursus arctos horribilis) attempting to catch Salmon in Brooks river, Katmai National Park, Alaska, USA, July

Mark Carwardine / Southern elephant seals asleep on beach {Mirounga leonina} Falkland Is

Paul Hobson / Two Greater flamingoes sleeping on one leg {Phoenicopterus ruber} Namibia

Pete Oxford / Waved Albatross (Phoebastria irrorata) courtship, Punta Cevallos, Espaola Island, Galapagos Islands, Ecuador, South America. Endemic, Critically endangered

Doug Perrine / Salmon shark {Lamna ditropis} captive, with salmon in mouth (eyes are rolled back for protection), Prince William Sound, Alaska, USA, (digitally modified)

Jeff Rotman / Klunzinger's wrasse (Thalassoma rueppellii / klunzingeri) swimming past diver, Sinai Peninsula, Red Sea, Egypt. Model released. Model released.