A pair of adorable polar bear cubs play-fight with each other in the Alaskan snow. Pictured on the coast of Kaktovik on Barter Island, the young polar bears roll around in the powdery snow as they tickle and wrestle together. Finishing their play-date, one of the cheeky bears teasingly sticks out its tongue before bounding towards their mother.
MOUTH OPEN wide, this little stoat appears to be in mid-song as he belts out a tune for his onlookers .
This cheeky chappie is getting into all kinds of monkey business as he enjoys cooling off on a scorching hot day .
POWERFUL bolts of lightning illuminate the night sky in an incredible autumn storm over the Sardinian coastline .
RESTING his weary head on his flipper, this little seal pup takes a much needed nap after an afternoon of strenuous yoga .
ROLLING across a 65-metre-high viaduct in the Alps, the red carriages of the Bernina Express add a splash of colour to the spectacular snow-covered Swiss surroundings .
Clinging on to their furry backs, mischievous monkeys appeared to enjoy the free transport as they rode around on a perturbed Capybara .
IN a galaxy far, far away, this collection of stunning interstellar formations will leave you STARSTRUCK .
SOARING through the air, this is the moment a hungry tawny owl arrives home with dinner .
SAILING peacefully across a river in the early morning light, a fisherman in China keeps a 1000 year old tradition alive .
ARMED with her camera, bikini and flippers, this brave diver goes swimming with SHARKS .
BALANCING 30 metres above ground, these slackliners take the expression of living dangerously one step further, by tightrope walking NAKED .