EnvironmentThe Amazon is turning into savannah – we have 5 years to save it We have been hearing warnings about the destruction of the Amazon rainforest for decades, but experts say a catastrophic tipping point is now just over the horizon. Are they right? And if so, what can we do to pull things back? Features
HumansSurvival of the friendliest? Why Homo sapiens outlived other humans We once shared the planet with at least seven other types of human. Ironically, our success may have been due to our deepest vulnerability: being dependent on others Features