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
STARING eagerly into the camera, this little toad is full of curiosity .
SITTING quietly at the edge of the lake, these two baby bears watch and learn as the adults hunt for fish .
Throwing a right hook as he launches onto his opponent with his gnarling teeth at the ready, this is the OTTER-LY ruthless showdown between two otters .
FINALLY catching a meal, a pair of great white egrets fight over their dinner .
With luminous colours and alien- like features, these magical mushrooms look like they belong on another planet .
DIPPING his head into the vase of water, this little squirrel takes a refreshing break from an afternoon of eating .
WITH HIS PAW covering his mouth, this cheeky cub looks amused by something .
THIS BIGFOOT 'Jesus bird' may look silly, but he's perfectly designed for walking on water .
THIS may look like a dolphin through jumping hoops, but it is in fact nothing more than a clever 3D pencil drawing .
WITHOUT A care in the world, this little snow monkey puts his feet up and settles in for a snooze .
An adorable orangutan named Pongo celebrates his first birthday at Zoo Atlanta, Georgia, America .
A photographer has captured stunning photographs of the Milky Way above picturesque landscapes in the UK and Italy .