The Amazonian arrow poison that made modern anaesthesia
17 January 2018
Adventurer Richard Gill sought relief from symptoms of multiple sclerosis in an Ecuadorian tribal weapon – with wider results that live on in medicine today
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So long, suckers: Where have all the black holes gone?
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The universe is well-stocked with black holes large and small, but none in medium. Strange dwarf galaxies might hold the answer
Deadly heat: How to survive the world’s new temperature extremes
11 January 2018
Australia’s latest sizzling summer presages a global future – but we’re beginning to understand heat’s impacts on the human body, and how to combat them
