Steven Kazlowski / Polar bear (Ursus maritimus) young bear rolling around in the snow, on newly formed pack ice during autumn freeze up, Beaufort Sea, off Arctic coast, Alaska

Matthew Maran / Great created grebe (Podiceps cristatus) with chick following, and person swimming in pond, Hampstead Heath, London, July 2014.

Ernie Janes,Ernie Janes / Yellow Labrador jumping breakwater, Norfolk. April

Steven David Miller / Agile wallaby (Macropus agilis) female with joey in pouch, joey's limbs no longer fit in pouch. Nitmiluk National Park, Northern Territory, Australia.

SCOTLAND: The Big Picture / Family mountain biking through forest, Cairngorms National Park, Scotland, UK, November 2011.

SCOTLAND: The Big Picture / Walker silhouetted at sunset on Braeriach, Cairngorms National Park, Scotland, UK.November

SCOTLAND: The Big Picture / Walker silhouetted at sunset on Braeriach, Cairngorms National Park, Scotland, UK.November

Nick Garbutt / Veterinarian from Oncafari Project setting trap to catch Jaguar (Panthera onca palustris) in order to fit a radio collar. In foreground old and weakened Cow killed by female Jaguar. Caiman Lodge, sout...

Ashley Cooper / Climber on Stac Pollaidh in Assynt, Scotland, UK. September 2006.

Ashley Cooper / Man leaping at sunset, Red Screes in the Lake district National Park, Cumbria, UK. April 2009

Ashley Cooper / Man fell running on Red Screes at sunset in the Lake district National Park, Cumbria, UK. April 2009

Ashley Cooper / Mountain bikers on Mont de la Saxe above Courmayeu, Italy. August 2014