Since the dawn of history, no other living thing (save, possibly, the snake) has been as reviled by humankind as the wolf. Still, wolves and people have been drawn to each other since the beginning. Canis lupus bounds through our folklore, howls in our dreams, and--occasionally--competes with us on the hunt. As one zoologist imagines it: "Through the cold of winter the wolf made music in the mysterious darkness and sometimes, in curiosity, sat just beyond the dwindling circle of firelight and watched." The curiosity was mutual; this is the feared animal, ironically, that gave rise to man"s best friend. Yet only recently has science begun to understand these complex social mammals. Enter biologist L. David Mech. Years of research during the 1960s in Michigan"s Isle Royale National Park provided Mech with a level of firsthand knowledge shared by few in the field. In 1970 he compiled his findings (updated in 1980) into the preeminent document of its kind. Thomas McNamee, author of The Return of the Wolf to Yellowstone, calls the book the "best single source of information on wolf biology," and refers to its author as "the undisputed king of wolf research."