Andy Rouse / Galapagos green turtle (Chelonia mydas agassisi) underwater portrait, being inquisitive, note algae growing on head and shell

Laurent Geslin / Mute swan (Cygnus olor) inquisitive juvenile on Lake Geneva, Geneva, Switzerland

Andy Rouse / Polar bear (Ursus maritimus) standing against expedition ship, taken with extreme wide angle lens, Svalbard, Arctic September 2011

Andy Rouse / European Stoat (Mustela erminea) in vegetation. UK, July.

Andy Rouse / European Stoat (Mustela erminea) portrait. UK, July.

Andrew Parkinson / Red squirrel (Sciurus vulgaris) standing on its hind legs, Cairngorms National Park, Scotland, UK, March.

Klaus Echle / Red Fox (Vulpes vulpes) investigating hollow tree. Black Forest, Germany, May.

Brent Stephenson / Arctic fox (Alopex / Vulpes lagopus) on a rocky ledge. Diskobukta, Svalbard, July.

Jane Burton / White-faced black-and-white Border Collie puppy.

Juergen Freund / Four Green turtles (Chelonia mydas) looking for resting places on the reef. Sipadan Island, Semporna, Sabah, Malaysia, June

Anup Shah / Inquisitive African lion cubs (Panthera leo) wide angle perspective, Masai Mara National Reserve, Kenya. August

Aflo / ic-09002 Hawaiian monk seal swimming underwater {Mirounga angustirostris} Hawaii