Front Cover -- Title Page -- Copyright -- Contents -- Illustrations -- Acknowledgments -- Author's Notes -- 1: Introduction -- 2: Physical Characteristics of Tassel-Eared Squirrels -- 3: Habitat, Home Range, and Distribution -- 4: Food and Feeding Activities -- 5: Nests -- 6: Behavior and Social Interactions -- 7: Reproduction, Embryology, and Development -- 8: Mortality and Parasites -- 9: Genetics -- 10: The Kaibab Squirrel -- 11: Ecology -- COLOR PLATES -- 12: Census and Monitoring Methods and Techniques -- 13: Management and Conservation of Tassel-Eared Squirrels -- End Notes -- Appendix 1: Taxonomy of Tassel-Eared Squirrels -- Appendix 2: History of Tassel-Eared Squirrel Nomenclature -- Appendix 3: The Naturalists and the Six Recognized Subspecies of Tassel-Eared Squirrels -- Appendix 4: Faunal Remains, an Artifact, and Fossils of Tassel-Eared Squirrels -- Appendix 5: A Brief Evolutionary History of Tassel-Eared Squirrels -- Appendix 6: Average Measurements of Tassel-Eared Squirrels (not segregated by sex) -- Appendix 7: Tassel-Eared Squirrel Embryo Measurements -- Appenix 8: Changes in Weights of Developing Young Abert's Squirrels -- Appendix 9: Standard Mammal Measurements at Birth and Six Weeks of Young Abert's Squirrels -- Bibliography -- Index -- Back Cover.