Sadly this is something Humans caused to eliminate the Wolf, This Disease was used to help wipe out wolves a century ago, still plagues animals today much in the same way they did to the Buffalo to eliminate Native Americans…
During Yellowstone National Park’s frigid winters, small mites can have a big effect on the wolves they invade, altering the times they hunt, how many calories they need to consume and how far they travel.
The findings were published in the March 28 edition of the scientific journal “Ecology.” Ecologist Paul Cross, of the USGS Northern Rocky Mountain Science Center in Bozeman, Montana, was the lead author of the study, which concludes six years of research he’s conducted on mange in wolves using thermal imaging cameras.
“It’s a very complicated paper, highly mathematical, but the gist of it is that when wolves get mange, they lose a lot of heat,” said Doug Smith, wolf biologist for Yellowstone National Park.
Source: Mange changes Yellowstone wolves’ hunting, travel and food needs | Wyoming News | trib.com