For decades experts have debated the effects of restoring wolves to Yellowstonenps and exactly what their role was in influencing elk, willow, and stream health. A new study that collected data over a 20-year period found a 1,500% increase in willow tree volume along riparian zones following the reintroduction of wolves, illustrating just how important wolves really are to rewilding the Yellowstone ecosystem. Check out the study at ➡️ biodiv.us/YNP (all capitalized) to learn more. While wolves are protected in Yellowstone, they're not safe beyond the park's protective boundaries. We're working to fix that — you can help. #yellowstone #Nationalpark #wolves #yellowstonewolves #saveourwolves #trailcam #trailcamera