This unit is one of a series on environmental education for grades 1-12. The unit is designed to be used with secondary school students and includes the following sections: (1) Preface; (2) Dead or Alive; (3) Finding Out by Looking Closely; (4) A Year in the Life of a Twin Fawn; (5) Ecology; (6) The Tools of Wildlife Management; (7) Land Use; (8) Helping a Threatened Population, A Model for Action; (9) Suggested Strategies for Action; (10) Appendices; and (11) Schedule Sheet for the Unit. References to audiovisual materials, worksheets, and activities are made; these materials are not included with this publication but may be purchased. The materials in this unit have been validated as successful, cost-effective, and exportable by the standards and guidelines of the U.S. Office of Education. (RH)