Squat rhinos lived in North America about 12 million years ago, congregating in huge, water-bound herds much like modern hippos.

Since the 1920s, people have been finding fossils near Verdigre Creek in northeast Nebraska. However, it wasn’t until 50 ...

The mother pronghorn, which can quite easily outrun the lone wolf, tries to distract the savage killer from its pursuit of her baby. Pronghorn are the fastest North American land mammal, with a top ...

Picture a wild landscape, scarred by decades of change. Now imagine that simply bringing back a single animal could set off a ...

They argued that the world is green because higher trophic levels control herbivore abundance ... Are wolves saving Yellowstone's aspen? A landscape-level test of a behaviorally mediated trophic ...

Bison are herbivores, primarily grazing on grasses. Their grazing patterns help maintain the health of Yellowstone’s ecosystems. By moving and grazing in different areas, they prevent overgrazing and ...

Reintroduction of wolves to Yellowstone. Image by patrice schoefolt via Unsplash. When apex predators vanish, the resulting explosion in herbivore populations dramatically transforms plant communities ...

John Ross explains about the effects on its habitats, people's conservation efforts, census techniques, and daily lifestyle of these elegant herbivores. Canadian naturalist John Ross takes viewers on ...