The UK government's decision on whether to allow badger culling to curb cattle TB in England is to be delayed.

Japan ends its annual Antarctic whaling season early, saying "harassment" by activists' ships had made it too dangerous to continue.

Male koalas bellow to "advertise their size" and draw in potential mates, according to scientists in Australia.

Chronic Fatigue Syndrome, also known as ME, should be treated with a form of behavioural therapy and exercise, say scientists.

Europe is to press ahead with its Earthcare space laser mission, despite a 30% rise in the probable cost of the venture.

Future climate change could change the shape of tropical forests, with possible consequences for carbon storage and biodiversity, a study says.

The final line-up of teams competing for the $30 million (£18.5m) robotic Moon-explorer prize has been confirmed.

President Obama's science adviser says he is relishing the idea of US Congressional hearings to assess the science of climate change.