New Hampshire Fish and Game Department

Despite adaptations that allow them to endure extreme conditions, populations of numerous butterfly species are shrinking. That's why the U.S. Fish and Wildlife Service is working proactively with partners across the nation to change the trajectory for butterflies that are “at risk” of steep...

Efforts to protect the endangered Karner blue benefit other at-risk butterflies

Biologist strive to learn more about the tough butterfly facing some of the most extreme weather conditions on earth.