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. TV footage showed bloodied runners and spectators being treated at the scene and the road strewn with debris. The FBI said that this was a "potential terrorist
PERCHING on the edge of a flower, these loved-up caterpillars can't resist each other as they enjoy a romantic moment together .
Swirling water and sand create amazing aerial images of river deltas across Iceland .
Raising his arms above his head and lying flat on his back, a polar bear stretches as he sprawls out across the ice .
TOMORROW (Saturday) marks the 28th anniversary of the nuclear disaster that left the city of Chernobyl devastated .
A pair of snarling foxes go paw-to-paw and brawl after unexpectedly crossing paths .
SHOWING off her best assets for the camera, this cheeky orangutan is in the mood for love, puckering up her lips to blow the biggest kiss she can .
An intrepid explorer hopes to be reunited with his travel partner, after his cuddly toy companion was stolen .
Swimming side by side with divers, these manatees will do anything they can to stay warm .
A Birmingham man inspired by sci-fi film Wall-E, has created a one- wheeled vehicle, controlled by signals from his BRAIN .
As sunlight cascades through its vibrant stained glass windows, every inch of the Nasir-ol-Mulk Mosque bursts with colour .