Butterfies

The brown argus butterfly has expanded its range rapidly in recent years.

Butterflies are promiscuous with large regions of their genomes, spreading traits to different species.

These coastal insects are critically endangered.

European butterflies are stuck between a shady and a hot place.

From striking Monarchs to iridescent morpho butterflies, here's a look at some butterfly beauties.

Team says colorful insects can be saved if habitats maintained.

Drought forced down numbers, and some saw it coming.

Butterflies return year after year to the same area.

Warm weather killing off both caterpillars and the plants they feed on.

The disguised butterflies were sitting right under researchers noses.