Discover the fascinating world of the Hoary Marmot (<i>Marmota caligata</i>), a medium to large rodent native to the alpine regions of western North America. Learn about their unique physical characteristics, social behaviors, and vital role in their mountainous ecosystem, as well as the conservation challenges they face in a changing environment. This comprehensive species description unveils the intricate life of these remarkable mammals, from their diets to their hibernation practices.