The Fender’s blue butterfly has fluttered away from the brink of extinction. The species, once so rare it was thought to be extinct, is no longer considered endangered, according to a January 11 ...

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.

Science, time and partnerships.” Trying to save Fender’s blue offered a challenge well-suited to this line of inquiry. Biologists knew the butterfly’s limited habitat would need to be ...

Native to the rainforests of Mexico, Central America and South America, this bright blue butterfly has a short but stunning life. It is thought that the colour helps the males to mark their ...

New research suggests the iconic Xerces blue butterfly may have been its own species. By Sabrina Imbler More than a century ago, a bluish butterfly flitted among the sand dunes of the Sunset ...