A new analysis suggests measures to protect wildlife on farms have been so diluted they may be counter-productive.

Blind cave-dwelling fish found in Somalia are able to recognise differences in quantities, say scientists.

Scientists in China and the US use advanced microscopy to discover exactly how a good night's sleep improves learning and memory.

Negotiators and campaigners have reacted angrily to the failure of many environment ministers to attend UN talks in Bonn.