ARM extended and head flung back, this little chipmunk performs a loose-limbed yoga move. Stretched out between two rocks he looks relaxed and ready for the rest of the day. This hilarious moment was captured by American lawyer Jay Campbell, 62, after he spotted the little chipmunk practicing his yoga in the Sandia Mountains, New Mexico. 'I was out photographing when, out of the corner of my eye, I saw this chipmunk crawl out of a rock den,' says Jay, of Palmetto, Florida.
SPLASHING in the water and fighting in-between rocks, these energetic tigers enjoy their fun-filled morning .
Primed and ready for action, this collection of striking images from the battlefield could be mistaken for authentic photos taking during World War II .
HOPPING onto the scales, these adorable baby Humboldt penguins are ready for their first weigh-in .
STEPFORD wives from the 1950's and 60's are performing history's most sexist exercise programme .
TUGGING at his exhausted mum's ears, a beautiful baby orangutan refuses to settle for a nap as he begins a game of peek-a-boo .
SURROUNDED by divers, a hungry green sea turtle enjoys being the centre of attention .
POWERFUL bolts of lightning illuminate the night sky in an incredible autumn storm over the Sardinian coastline .
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 .
SURROUNDED by a snowstorm, these young polar bears battle the elements - as well as each other .
Playing, splashing and generally messing around, these polar bears show they certainly have a soft spot for the water, and not just each other .
A middle spotted woodpecker swoops into her nest and feeds her young in a forest in Trentino, Italy .
A SPECTACULAR array of stars fills the night sky as they soar over this active volcano .