The California Academy of Sciences used genetic testing to identify a blue butterfly species similar to the Xerces species ...

A study compiled data from more than 76,000 butterfly surveys across the continental U.S. The declines seen in the last 20 ...

See what Baltimore checkerspot butterflies and caterpillars look like. Plus, learn which host plants you should grow to ...

The chief causes of the decline include habitat destruction, drier and hotter climate due to climate change and insecticide use.

A study involving a Binghamton University assistant professor reported a significant decline in the country's butterflies ...

Photographer and National Geographic Explorer Rena Effendi learned that a little-known species was named after her late ...

We have more data on butterflies because they're so easy to count. "They're really easy to identify on the wing," Edwards said. "I've done wasp studies where you have to catch them and take them ...

The study included monarch butterflies. But because the clearest evidence on their numerical declines comes from their overwintering grounds in Mexico and the researchers used only U.S. monitoring ...

Grames generated range maps for all butterfly species for the study. While researchers were unable to identify a single direct link between the drivers and the decline, Grames noted several ...

A neural change in butterflies alters mating preferences, influencing evolution through genetic and sensory mechanisms.