A huge security operation is under way in Canada's capital Ottawa after a gunman killed a soldier at a war memorial and shots were fired in the parliament building.
US car safety regulators expand a recall of vehicles with potentially dangerous Takata airbags to 7.8 million, warning that owners should take 'immediate action'.
An elephant calf has been air rescued after he fell down a well in the remote region of Milgis Lugga in Kenya. The BBC's Ed Ram reports.
Darwin was baffled by the evolution of flowers. Now genetics could explain it
Student-built project could show way forward for EVs
If we ever make contact with life beyond Earth it will likely be intelligent, says evolutionary biologist Richard Dawkins. But that may be the only thing aliens have in common with humans.
While the popular image of a start-up founder is a Mark Zuckerberg-style twenty-something - new research has revealed that a typical business founder is actually quite different.
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