Add Yahoo as a preferred source to see more of our stories on Google. In an inspiring story of nature's resilience, a butterfly species once thought extinct is making a triumphant return to the skies ...

A butterfly officially classed as extinct in the UK has been seen at sites across southern England, says a conservation charity. In recent weeks there have been a flurry of sightings of the large ...

A flash of orange darted between blue broadleaf lupine, magenta paintbrush and pink-white mountain daisies before the small butterfly disappeared into the sky. "That's another California Tortoiseshell ...

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 ...