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 ...

Mike Anderson takes us to a sharp-tailed grouse lek where the native birds are displaying during their annual mating rituals.

Fossils of alvarezsaurid dinosaurs show bird-like air sacs in their bones. Scans revealed hollow spaces connected to their ...

The most unique feature of the B-36 was its unusual hybrid propulsion system, combining both propeller and jet engines.

The Sacramento Bee went shopping for the most affordable eggs, milk, cheese, butter and chicken. Do you live near savings?

The avian world is a treasure trove of fascinating and often bizarre mating rituals. Explore the different types of bird ...