PATTERNS of colourful swirls and twirls of smoke help to create these imaginative spellbinding photographs. The hypnotic and psychedelic images were created by American psychologist Mark Scalco, 49, who refers to his work as 'smokreations'. 'I've always enjoyed the patterns made by kaleidoscopes or some geometric screen-savers,' says Mark, of Durham, North Carolina. 'I remember as a kid looking for shapes in clouds and smoke.
A diver explores the crystal clear waters of the Silfra canyon in southern Iceland, which is the only place on Earth where you can dive or snorkel between two continental plates .
PERCHING on the edge of a flower, these loved-up caterpillars can't resist each other as they enjoy a romantic moment together .
SURROUNDED by a snowstorm, these young polar bears battle the elements - as well as each other .
A frilled lizard appears to be belting out a tune as it sits in a tree with its mouth open wide .
USUALLY full to bursting, these London Underground stations stand silent and completely commuter free .
AN EXERCISING turtle and an ice-skating chick are hardly everyday exploits in the animal community .
WIDE EYED and staring straight down the lens of the camera, this intrigued seal is ready for his close up .
From giant mountains to vast deserts, an American photographer spent a year capturing the diverse and beautiful landscape of the United States .
A mining town in Australia’s outback appears to be completely deserted, but its residents have escaped the scorching heat by living in underground caves .
SQUABBLING over the last piece of grain, these hungry squirrels are determined to stock up on as much food as possible .
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 .
This hungry white tiger has just one thing on her mind - to taste fresh meat .