What Yellowstone’s bison reveal about the power of the mob
A recent study of the last migratory herd of bison in North America showed that bison are not compelled to surf the green wave. Bison, which are aggregate grazers, create
Examining trophic cascades in Yellowstone
Have wolves altered the Yellowstone ecosystem? If so, how? Where? Are wolves an environmental panacea, as they have been called? For the past two decades, these questions have been asked