Italy declares Pompeii emergency

Online maps 'wiping out history'
Internet mapping is demolishing thousands of years of Britain's geography and history, a leading cartographer claims

'Lost towns' discovered in Amazon
The remote Amazon basin was once home to complex urban communities, according to a study in Science journal.

Fly's brain 'senses swat threat'
Researchers in the US say they have solved the mystery of why flies are so hard to swat.

"Cold feet" may halt toad march
Scientists predict that colder temperatures will prevent the plague of cane toads reaching Melbourne.

Jamaica braced for storm arrival
Tropical Storm Gustav strengthens as it nears Jamaica, while the US city of New Orleans makes evacuation plans.