There are more than 140,000 species of butterflies and moths in the world, fluttering on every continent except Antarctica. Their wings contain countless patterns and colors, providing critical tools ...

Corrections & Clarifications: The article has been updated to correctly reflect the Fender's blue butterfly's downlisting on the Endangered Species List. It remains on the list as "threatened." The ...

The Smith's blue butterfly may be tiny, but it's endangered in a big way. It spends its whole life within a few hundred yards of two native plants, seacliff buckwheat and coast buckwheat — and is ...

Gleaming in the air, the iridescent blue morpho protects itself from predators using the power of light. Native to the rainforests of Mexico, Central America and South America, this bright blue ...

As the first North American insect to go extinct due to humans, a blue butterfly has become an icon for insect conservation — and what happens when humans destroy habitats without thought for the ...