For 25 years, Adolph Murie, one of North America�s greatest naturalists, spent his summers in Mount McKinley National Park (since renamed Denali National Park

From the publisher: For 25 years, Adolph Murie, one of North America's greatest naturalists, spent his summers in Mount McKinley National Park (since renamed De

In the time of Lewis and Clark, wolves were abundant throughout North America from the Arctic regions to Mexico. But man declared war on this cunning and powerf

Based on a field study of the ecological relationship between the timber wolf (Canis lupus pambasileus) and the Dall sheep (Ovis dalli dalli), 1934-41; includes