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Study knocks Las Vegas for ozone, but local officials cite improvement

The American Lung Association says Las Vegas has some of the highest ozone levels in the nation, but Clark County air quality officials insist the community is improving when it comes to the smog-causing pollutant.

Peregrine falcons act as mercury bellwether, Nevada study shows

The toxic element is turning up in the feathers of peregrine falcons from coast to coast, including those living full time at Lake Mead National Recreation Area, according to a new study by Nevada Department of Wildlife biologist Joe Barnes.

 
Rare frog finds home at Springs Preserve in Las Vegas

Dozens of rare relict leopard frogs were set free Thursday in their new urban habitat at the Springs Preserve, part of the effort to revive the species thought to be extinct along the Virgin and Colorado rivers before it was discovered anew near Lake Mead in 1991.

After 34 years, UNLV professors still digging Maya ruin in Belize

Arlen and Diane Chase, a husband-and-wife team of anthropologists, have been returning to the Central American country since 1984 to excavate ruins and uncover secrets of the once-teeming ancient metropolis of Caracol.