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

For more than nine years the wolves in Alaska's Denali National Park were the subject of intense research by a group of renowned scientists led by L. David Mech