The important role of wolves in wetland ecosystems

Researchers with the Univesity of Minnesota's Voyageurs Wolf Project and Voyageurs National Park have observed and demonstrated that wolves affect wetland ecosystems by killing beavers leaving their colonies to create new ponds.  Dr. Joseph Bump, associate professor at the University of Minnesota and co-author of this study, joined Ann on The Roadhouse to tell us more about what they've learned.