1. An Overview of Chemical Bioregulation in Vertebrates
2. Methods to Study Bioregulation
3. Synthesis, Metabolism, and Actions of Bioregulators
4. Organization of the Mammalian Hypothalamus-Pituitary Axes
5. The Hypothalamus Pituitary System in Non-Mammalian Vertebrates
6. The Hypothalamus Pituitary Thyroid, (HPT) Axis of Mammals
7. The Hypothalamus Pituitary Thyroid (HPT) Axis of Non-Mammalian Vertebrates
8. The Mammalian Adrenal Glands: Cortical and Chromaffin Cells
9. Comparative Aspects of Vertebrate Adrenals
10. The Endocrinology of Mammalian Reproduction
11. Comparative Aspects of Vertebrate Reproduction
12. Chemical Regulation of Feeding, Digestion and Metabolism
13. Comparative Aspects of Feeding, Digestion, and Metabolism
14. Regulation of Calcium and Phosphate Homeostasis in Vertebrates
15. Environmental Endocrinology of Vertebrates

Appendix
A. Abbreviations
B. Vertebrate Phylogeny and Evolution
C. Amino Acid Abbreviations
D. Units for Measuring Hormones in Tissues
E. Vertebrate Tissue Types
F. Metabolic Pathways

Dr David O. Norris (B.S., Baldwin Wallace University, 1961; PhD 1966, University of Washington) was a professor at the University of Colorado for 46 years where he studied environmental endocrinology of fishes and amphibians and taught general biology, endocrinology, human physiology, histology, vertebrate biology, and forensic biology. His endocrine research interests involve the role of natural and anthropogenic factors (pollutants) that operate through the brain and pituitary to influence thyroid, adrenal, and reproductive physiology that in turn affect development, sexual differentiation, reproduction, and ageing. He retired from CU in 2012 and currently is Professor Emeritus of the Department of Integrative Physiology. Dr Norris also does research in forensic botany and consults with law enforcement groups on homicides and other crimes throughout the USA and in several other countries. He is a Fellow of the American Academy of Forensic Sciences Dr Norris has published more than 150 scientific papers and abstracts in environmental endocrinology and forensic botany and is the senior author on several books including Vertebrate Endocrinology (6th edition, Academic Press, 2020), Endocrine Disruption: Implications for Health of Wildlife and Humans (Oxford University Press, 2005), a five-volume work on Hormones and Reproduction of Vertebrates (Academic Press, 2011) and Forensic Plant Science (Academic Press, 2016).

Dr James A. Carr is a Professor of Biology in the Department of Biological Sciences at Texas Tech University. His research has focused on various aspects of environmental endocrinology and neuroendocrinology for 25 years including the effects of opioid peptides on the brainstem, cardiovascular areas and pituitary hormone secretion, the impact of environmental pollutants on the thyroid and reproductive axes in fishes and amphibians, and the impact of stress hormones on subcortical visual pathways involved in feeding.