"As America's first national park--established thirty years before the creation of the National Park Service--Yellowstone lacked any sort of systems or procedures to shape and direct its early wildlife conservation practices. The soldiers who manned the park thus spent a considerable amount of time establishing connections with scientific institutions and arranging to transfer specimens from the park to researchers and collectors elsewhere. In Centers...

The relationship between humans and mountain lions has always been uneasy. A century ago, mountain lions were vilified as a threat to livestock and hunted to the verge of extinction. In recent years, this keystone predator has made a remarkable comeback, but today humans and mountain lions appear destined for a collision course. Its recovery has led to an unexpected conundrum: Do more mountain lions mean they're a threat to humans and domestic animals?...