See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The first insectile casualty of human activity in the United States was ...

It’s been roughly 80 years since the Xerces blue butterfly was last spotted flitting about on pastel wings across coastal California sand dunes. But scientists are still learning about the insect. The ...

The British swallowtail butterfly (Papilio machaon britannicus) is the U.K.'s only native swallowtail and its largest native ...

The trio stalked slowly through a meadow high in the Sacramento Mountains near Cloudcroft, taking turns wielding large nets, a notebook and pen. They call out names like dainty sulphur ...

The beautiful Xerces blue butterfly was a distinct species, according to a new study. It hasn't been seen alive since 1943. Reading time 3 minutes Scientists say they’ve confirmed a decades-old ...

This is the 93-year-old Xerces blue butterfly specimen that researchers collected tissue samples from for this study. Field Museum The Xerces blue butterfly has the dubious distinction of being the ...

The Xerces blue butterfly was last seen flapping its iridescent periwinkle wings in San Francisco in the early 1940s. It's generally accepted to be extinct, the first American insect species destroyed ...

A new study confirms the British swallowtail butterfly is genetically unique. This native species possesses significantly ...

MISSOULA, Mont. — The Missoula Butterfly House and Insectarium joined a network of scientists contributing to nationwide research and publication on insect numbers and climate change. The Butterfly ...

Visitors can get up close and personal with butterflies at Lukas Nursery in Oviedo where the Butterfly Encounter has been ...

More than 20,000 votes cast in Butterfly Conservation’s poll of 60 native species to find nation’s favourite for first time ...

Chaos theorists refer to the “butterfly effect” to describe seemingly insignificant events — like the ripple of a butterfly’s wing — that can have unintended consequences. But there might be a more ...