This volume presents the results of a five-year study of wildlife-management policies in national parks. It synthesizes interviews with individuals inside and outside the National Park Service, provides a comprehensive review of published and unpublished literature, and draws on the collective experience of the authors with various units of the system over the past three decades. Among the topics examined are: the structure and history of the National Park System and Service wildlife "problems" in the parks the role of science in formulating policies and in management recommendations for changes in policy formulation, management, and scientific research procedures