The Fort Indiantown Gap military base in Lebanon County is home to the world's only surviving population of the eastern regal fritillary, a large butterfly that the U.S. Fish and Wildlife Service ...

Efforts to save the heath fritillary accelerated after the large blue butterfly (pictured) became extinct in the wild in England in the late 1970's, says Warren. ... Three quarters of the UK's ...

The only place to find the regal fritillary butterfly in the East Coast is at Fort Indiantown Gap. It's a rare treat to spot what the military training site compares to a monarch butterfly dipped in ...

Fall is the season of Gulf Fritillaries in the Lowcountry. These medium-sized orange butterflies are often confused with Monarchs (Danaus plexippus), but it’s fairly easy to tell the difference.

FORT INDIANTOWN GAP, Pa. — Fort Indiantown Gap announced Friday that the Pennsylvania Department of Military and Veterans Affairs will be conducting free guided tours of the only population of the ...

The Glanville fritillary has long been an internationally known model species for ecology and evolutionary biology, whose population biology has been studied on the Aland Islands for more than 20 ...

Viewed from Holme Lacy, across the Wye valley, the woods rising on hillocks along the eastern edge of the floodplain look uninspiring, dominated by dark regimented conifers. My heart sinks: how can ...

The rare regal fritillary butterflies have disappeared from nearly everywhere in the eastern U.S., as native grasslands have been destroyed and converted to other human uses. The once common species, ...

At Fort Indiantown Gap in northern Lebanon County, a vast stretch of grassland houses the only population of the rare regal fritillary butterfly in the eastern United States. Several of these ...