A toxin from an ancient bacteria helps ticks survive and transmit Lyme disease to the humans they feed on, a new study finds.
A toxin from an ancient bacteria helps ticks survive and transmit Lyme disease to the humans they feed on, a new study finds.
A video of a humpback whale and her dead calf reveals the animals’ bond 
A new map points out U.S. rivers most worth protecting 
Exhaling may speed up reaction times 
A medieval remedy could offer ideas for beating antibiotic resistance 
In the wake of the flood, could Nepal avert the next disaster? 
‘The Deep End’ podcast is back to explore what makes your voice yours 
Could a new global panel defuse inequality’s ‘ticking time bomb’? 
Homicides fall as organised crime grows more profitable – and networked 
Somali families face renewed violence amid worsening hunger crisis