A form of avian pox affecting great tits that was found mainly in south-east England is spreading further north and west, researchers warn.

The African crested rat applies toxins from a poisonous tree to its fur to foil predators, scientists report.

Japan's parliament backs a plan to help Tokyo Electric Power (Tepco) compensate victims of its tsunami-crippled nuclear plant.

Researchers propose a means to test the idea that we inhabit an infinity of universes, each encapsulated in "bubbles" of space-time.

Local police discover a tank from the ill-fated shuttle Columbia in a drought-stricken east Texas lake.

A nuclear reprocessing plant at the Sellafield complex in Cumbria is to close, putting 600 jobs at risk.

A very well-preserved 33,000 year old canine skull from a cave in the Siberian Altai mountains shows some of the earliest evidence of dog domestication ever found.

The UN and the International Olympic Committee were among those targeted by one of the largest series of cyber attacks ever, security firm McAfee says.