Emerging economies in Asia, including India and the Philippines, face the greatest financial risk from natural disaster, analysis suggests.

Scientists involved in ebola research tell the BBC that a commercial vaccine to prevent the onset of the deadly infection may never be developed.

Hermit crabs that carve out shells to make more suitable homes stay within safe limits, say scientists.

A federal court in Brazil orders the suspension of work on the huge Belo Monte dam, which will flood a vast area of native forest in the Amazon.

An image of a Playboy centrefold is shrunk to the width of a human hair by scientists in Singapore.

A 70-year-old German climber is rescued from a crevasse in the Austrian Alps, where he says he was stuck for six days.

There may be good news for people looking for an excuse to munch on a couple of squares of chocolate after a review showed the treat could reduce blood pressure.

Toilets that microwave poo or turn it into charcoal are put on show at the Gates Foundation Reinvent the Toilet fair.