A third of Americans still breathe unhealthy air after decades of improvements—which the Trump administration wants to roll ...

As spring arrives in Utah, one of the West’s most bizarre and fleeting spectacles begins: the greater sage grouse mating ...

Shrimp look an awful lot like bugs. The exoskeletons, jointed legs and compound eyes of both groups of living things give ...

The most common way to detect bird flu involves swabbing potentially contaminated sites and sequencing the DNA that’s been ...