~RS~q~RS~~RS~z~RS~26~RS~)
Science & Environment
World leaders are in Brazil for the Rio+20 summit on the environment, which comes 20 years after the landmark Earth Summit in the same city. But how has the planet changed since 1992? Find out with our click-through slideshow.
Cockroaches evolving to evade traps
Cockroaches are outsmarting our efforts to kill them by evolving to avoid the taste of sugar traps, a study reveals.
'Field of diamonds'
The stories behind Rome's gleaming cobblestones
The dogulator
Work out your dog's true age with this handy calculator
Slave pride
South African rapper determined to prove Afrikaans is "cool"
Le Shopping?
The English phrases readers love to hear spoken by the French
Talking Movies
Tom Brook looks at Red Obsession, a film which charts China's thirst for red wine
BBC © 2013 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
Obama defends 'just' drones war