Add Yahoo as a preferred source to see more of our stories on Google. A flash of orange darted between blue broadleaf lupine, magenta paintbrush and pink-white mountain daisies before the small ...

The Mount Charleston blue butterfly is still incredibly rare, but researchers are seeing more of them in more places than they have in decades. Close to 200 of the endangered insects were spotted over ...

Bruce Boyd stood in the meadow of Bimbo ski run flanked by Ponderosa pines and a bevy of biologists. The sun beat down on this open patch where wildflowers bloomed beneath a deep-blue sky at the 8,830 ...

LAS VEGAS — The Mount Charleston blue butterfly is still incredibly rare, but researchers are seeing more of them in more places than they have in decades. Close to 200 of the endangered insects were ...

LAS VEGAS— The Center for Biological Diversity and Lee Canyon reached an agreement today to allow the proposed expansion of the Lee Canyon Ski Area to move forward with significant new protections in ...

Butterfly counts and flowering times shift earlier in warmer, low-snow years. Volunteers now lead Mt. Rainier surveys after federal research funding ended. Butterflies serve as effective indicators of ...