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.
At least three people have been killed and more than 100 injured, some seriously, in two explosions at the finish line of the Boston Marathon .
FIFTEEEN years after it was closed pictures by a British teacher show the calamity Hong Kong airport that was closed for being too dangerous .
SITTING quietly at the edge of the lake, these two baby bears watch and learn as the adults hunt for fish .
AIRPORT staff have been put on alert after diet pills that come in grenade shaped containers sparked security alerts .
A Romanian photographer has captured the unique patterns of hundreds of human eyes in a series of striking macro shots .
PICKING up a tiny tea-pot with its paws, a little red squirrel struggles to prepare its morning tea .
This longhorn beetle demon-strates a dark side as it looks just like the devil .
A lazy otter finds the ideal spot to soak up the sun and sleep off his lunch .
WEARING tiny Christmas accessories, these adorable babies get into the spirit of the season .
A DETERMINED great blue heron holds on tightly to its prey as the furry gopher attempts to wriggle free .
STEPFORD wives from the 1950's and 60's are performing history's most sexist exercise programme .
A SERENE turquoise glow glimmers from underneath these powerful icebergs .