Mange in Yellowstone wolves reveals insights into human scabies and conservation biology Liana Wait, Department of Ecology and Evolutionary Biology Jan. 25, 2021 9:30 a.m. Before wolves were reintroduced to Yellowstone National Park in the mid-1990s, they were vaccinated for common diseases and treated for any parasite infections they already carried. As a result, the first few generations of wolves were relatively disease-free, but over the years, various diseases have found their way into the population. Both of these Yellowstone wolves display the hair loss and skin lesions ass...