Yellowstone Wolves' Forest Revival Was Overstated, Scientists Say

Yellowstone Wolves' Forest Revival Was Overstated, Scientists Say

Biology teachers around the world commonly introduce their students to the concept of 'trophic cascades' with an example from Yellowstone National Park in the United States. It starts with the removal of wolves, and ends with the collapse of a forest. Returning wolves to the ecosystem has been hailed as a remarkable success in bringing the forest back. But a team of biologists and geographers say that claim may have been overstated. Let's start …