The risk of a rapid dengue outbreak looms large across the country, with entomologists warning that unusually high densities ...

Phylogenetic surveys of soil ecosystems have shown that the number of prokaryotic species found in a single sample exceeds that of known cultured prokaryotes. Soil metagenomics, which comprises ...

To stop wall construction near Quitobaquito Springs, O’Odham activist Nellie Jo David sat in the bucket of a front-end loader that was parked on a dirt road next to the border.

Meanwhile, in Canada, Prime Minister Mark Carney's government threatened to hike tariffs by late July on US imports of steel and aluminum, weeks after Trump ballooned US levies on those metals to ...