Traditional stories passed down through generations by Australian Aborigines may be among the oldest accurate oral histories in the world, scientists have claimed.
The findings have allowed them to map how the continent may have looked around 10,000 years ago.
The world is "dangerously unprepared" for future deadly pandemics like the Ebola outbreak in West Africa, the president of the World Bank has warned.
Jim Yong Kim, speaking in Washington, said it was vital that governments, corporations, aid agencies and insurance companies worked together to prepare for future outbreaks.
He said they needed to learn lessons from the Ebola crisis.
More than 8,600 people have died, most in Sierra Leone, Guinea and Liberia.
"The Ebola outbreak has been devastating in terms of lives lost and the loss of economic growth," Mr Kim told an audience at Georgetown University.
"We need to make sure that we get to zero cases in this Ebola outbreak. At the same time, we need to prepare for future pandemics that could become far more deadly and infectious than what we have seen so far with Ebola. We must learn the lessons from the Ebola outbreak because there is no doubt we will be faced with other pandemics in the years to come."
Calm before the storm. Donald E. Davis / NASA
The asteroid that wiped out the dinosaurs set off an intense heat wave that briefly boiled the Earth’s atmosphere – but it didn’t burn off all the plants.
Humanity has not been unlucky enough to observe at first hand the effects of a large impact, so to investigate whether a massive asteroid would spark off a global wildfire we had to turn to the laboratory. We have modelled, for the first time, the heat generated by the impact and what it meant for the planet’s plants. Our research is published in the Journal of the Geological Society.
Lights go out, internet is cut for days, and agriculture is suffering as crisis spreads from São Paulo to Rio de Janeiro and beyond
The taps have run dry and the lights have gone out across swathes of Brazil this week as the worst drought in history spreads from São Paulo to Rio de Janeiro and beyond.
More than four million people have been affected by rationing and rolling power cuts as this tropical nation discovers it can no longer rely on once abundant water supplies in a period of rising temperatures and diminishing rainfall.