Once saved from extinction, South Africa’s Brenton blue butterfly faces an uncertain fate after the devastating 2017 Knysna fire wiped out its last known habitat. Years of conservation efforts ...

The Xerces blue butterfly went extinct along the San Francisco coast some 80 years ago. But scientists have identified a ...

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 ...

He said his most prized butterfly costs $8,000 — which he keeps from sight, concerned about possible theft — and hopes to sell the collection to an individual or research institution. The ...

The rare Mount Charleston blue butterfly lives in just a handful of alpine meadows on Mount Charleston above Las Vegas. The species was protected under the Endangered Species Act in 2013. One of its ...