Pts.I. Principles of developmental biology -- 1. Developmental biology: the anatomical tradition -- 2. Life cycles and the evolution of developmental patterns -- 3. Principles of experimental embryology -- 4. The genetic core of development -- 5. The paradigm of differential gene expression -- 6. Cell-cell communication in development -- Pts.II. Early embryonic development -- 7. Fertilization: beginning a new organism -- 8. Early development in selected invertebrates -- 9. The genetics of axis specification in drosophila -- 10. Early development and axis formation in amphibians -- 11. The early development of vertebrates: fish, birds, and mammals -- Pts.III. Later embryonic development -- 12. The emergence of the ectoderm: the central nervous system and the epidermis -- 13. Neural crest cells and axonal specificity -- 14. Paraxial and intermediate mesoderm -- 15. Lateral plate mesoderm and endoderm -- 16. Development of the tetrapod limb -- 17. Sex determination -- 18. Metamorphosis, regeneration, and aging -- 19. The saga of the germ line -- Pts.IV. Ramifications of developmental biology -- 20. An overview of plant development -- 21. Medical implications of developmental biology -- 22. Environmental regulation of animal development -- 23 Developmental mechanisms of evolutionary change

1. Embryology
2. Developmental biology