Mutations across species reveal clues to ageing "Staggering" findings from studying 16 mammals - including humans - sheds light on why we age. Source
Zika virus may be one step away from explosive outbreak Scientists say we should be on alert for variants which could start another major outbreak. Source
Woman completes 100 marathons in 100 days world record Kate Jayden may have to wait up to a year before her feat is confirmed by Guinness World Records. Source