Iranian-backed militias in Iraq have moved to a “heightened level of preparation” in recent days, raising fresh concerns they could be preparing to attack US troops or US diplomatic sites in Iraq, according to defense officials familiar with the latest intelligence.
Here’s how brain-eating amoebas may infect people 
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? 
Palestinians yearn for ‘a return to normal life,’ says top Middle East peace envoy 
“The Price of a Narrow Metric: Why Vulnerability Must Count” 
How to Protect Coastal Communities From Tide-Related Loss and Damage in Bangladesh 
Afghanistan’s Drought Deepens, and Women Bear the Heaviest Burden