BIOLOGICAL ANOMALIES - HUMANS I is one of 22 volumes in the Catalog of Anomalies published by The Sourcebook Project. The catalog provides an objective, unsensationalized compilation of anomalous phenomena, difficult to explain observations, and curiosities of nature in the fields of astronomy, biology, archeology, geophysics, and geology. This is the first of three volumes devoted to human biological anomalies, looking at the "external" attributes of humans: their physical appearance, their anomalous behavior, and their unusual talents and faculties. Some of the topics covered include Mirror-Image Twins * The Sacral Spot * The Supposed Human Aura * Baldness among Musicians * Human Tails and Horns * Human Behavior and Solar Activity * Cycles of Religiousness * Cycles of Violent Human Behavior * Handedness and Longevity * Wolf-Children * The "Mars Effect" * Telescopic Vision * Dermo-Optical Perception * Hearing under Anesthesia * The Human Navigation Sense * Asymmetry in Locomotion * and Sex-Ratio Variations. BIOLOGICAL ANOMALIES - HUMANS I contains 52 illustrations and intriguing accounts collected from the archives of references including English Mechanic, New Scientist, Nature, Science, Science News Letter, American Journal of Psychiatry, Skeptical Inquirer, and Scientific American to name a few. Over 500 citations are referenced and indexed three ways, by First Author, Source, and Subject. The indexes are cross-referenced to each entry in the book to aid the reader in locating original source materials and conducting independent research.