The US upholds a decision classifying polar bears merely as "threatened" rather than "endangered", giving them less protection and angering activists.

The UK's most powerful CT scanner is helping to reveal the innermost secrets of a colossal sea monster skull that was recently unearthed in Dorset.

A nanotechnology team from Glasgow produce what they believe is the world's smallest Christmas card.

One of the first images of the extremely rare Saharan cheetah of Niger has been taken by a camera trap filming at night.

A scientist says the mantra of everyone "doing a little" to save energy is not enough to make a difference.

More than a quarter of the electricity generated in Scotland last year was produced from wind, hydro and other renewable sources.

Bee study by schoolchildren is published in Royal Society journal

China defends its economic and trade relations with African nations, in its first policy paper on the subject, amid criticism of a "resource grab".