Section
Science
Stone tools point to wide social ties among prehistoric Caucasus groups
Insect losses linked to smaller tree swallows and fewer chicks
Study finds languages reuse word parts to balance brevity and clarity
Study ties urban soil lead risk to housing, race and income
T-shirt backlash highlights why girls are opting out of advanced math
Machine learning screen points to six CO2 conversion solvents
Plant-based foods need better prices and shelf visibility, researchers say
Doctors warned to watch for Ebola and hantavirus as flu-like symptoms emerge
Researchers warn EU pesticide plan could weaken safety checks
Study maps how oxygen gets into wine after corking
