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
These beautiful photographs show how these playful pods of dolphins make their own fun by gliding, flipping and spinning through the air whilst enjoying the sun on their backs .
FORGET Thorpe Park this summer as this is a 50 mile-per-hour ride over the Colorado River CANYON .
LYING flat out on his back, this little meerkat makes the most of the English sunshine .
WITH SNOW COVERING the ground around them, these two polar bears play fight .
As sunlight cascades through its vibrant stained glass windows, every inch of the Nasir-ol-Mulk Mosque bursts with colour .
BLOWING bubbles underwater, this adorable polar bear slides into his tank for a playful dip .
ARM extended and head flung back, this little chipmunk performs a loose-limbed yoga move .
ROLLING up snow in its tiny paws, this little squirrel is looking for a snowball fight .
MOUTH OPEN wide, this little stoat appears to be in mid-song as he belts out a tune for his onlookers .
Playing, splashing and generally messing around, these polar bears show they certainly have a soft spot for the water, and not just each other .
The view from this rooftop pool is sure to make most holidaymakers envious .
COURAGEOUS climbers descend 400 metres as they manoeuvre their way through thick walls of ice .