Scientist at Work: Identifying Individual Gray Wolves by Their Howls
From EcoWatch:
Love them or hate them, wolves are vital members of natural ecosystems and the health of a wolf population can be an important factor in maintaining balance among species. Wolf populations are growing in North America—the Great Lakes region in particular now supports more than 3,700 individuals. Keeping track of wolf pack movements is important for reducing human-wolf conflicts which can arise when packs move too close to ranches.