The world's largest rat eradication campaign has now laid toxic bait on a further 580 sq km of South Georgia, reaching its target.

Flood defence spending is still not high enough, MPs say, as they call for investment to be increased year on year by £20m over the next 25 years.

Cockatoos can pick their way through a series of locks to reach a reward, scientists find - even when the task changes.

Footage from high-speed cameras shows how hummingbirds' main flight feathers shift, changing the shape of the wing to fine-tune the birds' lift.

Poached elephant ivory "disguised" as sun-dried fish has been seized in the Kenyan port city of Mombasa, officials say.

Three-quarters of British households overfill their kettles, wasting a total of £68m each year, an Energy Saving Trust (EST) report suggests.

Ministers are to set out their long-term plans for fighting TB in cattle - aiming for England to become TB-free within 25 years.

Argentina scraps a major gold-mining deal with Canadian firm Osisko, after protests by environmental campaigners.