One of the rarest mammals in the world, the Stolzmann's fish-eating rat, has quickly become a potential pest species.

The crew of the Mars500 simulated mission to the Red Planet have gone into "orbit" around their target.

Funds run short for a second protective casing to secure the wreckage of Chernobyl, nearly 25 years on from the world's worst nuclear disaster.

Do-it-yourself DNA tests to settle disputes over who a baby's father is are going on sale in Boots but there are warnings about using the kits.

Genes play a bigger role in Parkinson's disease than previously thought, according to the largest genetic analysis yet.

The US is hit by another onslaught of bitter winter weather as a storm stretching across a third of the country moves north-east.

Queensland residents are told it is now too late to escape as Cyclone Yasi - the most dangerous storm ever predicted to hit the Australian state - closes in.

Just like humans, parrots prefer to use one side of their body over the other, scientists discover.