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

A recent study combining data from more than 76,000 surveys from 35 monitoring programs across the country found butterfly populations declined 22%.

Through careful planning and collaboration with the Presidio Trust and the Xerces Society, scientists restored lost habitat and reintroduced blue butterflies to the area.

A comprehensive study of U.S. butterfly populations shows dramatic declines in most species, but Pacific Northwest ecologists ...

Here is the list of most breathtaking and beautiful butterfly species in the world. The black swallowtail, also known as the eastern black swallowtail or American swallowtail, has black wings ...

It is thought that the colour helps the males to mark their territories, and acts as a defence against predators. The blue morpho is often one of the species featured in Sensational Butterflies, an ...

the already-scarce Miami blue butterfly almost went extinct: No one recorded a single sighting for years. Finally, in 1999, a cheer went up among butterfly enthusiasts when a photographer discovered ...