David O. Norris is Professor Emeritus at the University of Colorado. He obtained his BS from the Baldwin-Wallace University and his PhD from the University of Washington. His broad research areas include environmental endocrinology and forensic botany. In the area of environmental endocrinology, his studies have focused on the neuroendocrine control of thyroid, adrenal, and reproductive functions with special interest in the role of environmental factors that alter the activities of these neuroendocrine systems. Kristin H. Lopez obtained her MA and PhD at the University of Colorado Boulder. Her research interests include morphological and physiological aspects of vertebrate reproduction and development, especially sex differentiation and ovarian function in reptiles and amphibians. She has enthusiastically supported the development of young scientists through teaching, textbook development, outreach, and programs to increase diverse representation in STEM.

• 1. Sex Determination and Gonadal Differentiation in Amphibians2. Neuroendocrine Control of Reproduction in Amphibians3. Hormones and Testicular Function in Amphibians4. Hormones and the Female Reproductive System of Amphibians5. Hormones and Sex Accessory Structures and Secondary Sexual Characters in Amphibians: Focus on Breeding Glands6. Stress and Reproduction in Amphibians7. Adaptations to Viviparity and some Analogous Reproductive Modes in Amphibians8. Hormones and Reproductive Behaviors in Amphibians9. Hormones and Reproductive Cycles in Anuran Amphibians10. Hormones and Reproductive Cycles in Gymnophione and Urodele Amphibians11. Environmental influences on Hormones and Reproduction in Amphibians

David O. Norris is Professor Emeritus at the University of Colorado. He obtained his BS from the Baldwin-Wallace University and his PhD from the University of Washington. His broad research areas include environmental endocrinology and forensic botany. In the area of environmental endocrinology, his studies have focused on the neuroendocrine control of thyroid, adrenal, and reproductive functions with special interest in the role of environmental factors that alter the activities of these neuroendocrine systems. Kristin H. Lopez obtained her MA and PhD at the University of Colorado Boulder. Her research interests include morphological and physiological aspects of vertebrate reproduction and development, especially sex differentiation and ovarian function in reptiles and amphibians. She has enthusiastically supported the development of young scientists through teaching, textbook development, outreach, and programs to increase diverse representation in STEM.

• 1. Sex Determination and Gonadal Differentiation in Amphibians2. Neuroendocrine Control of Reproduction in Amphibians3. Hormones and Testicular Function in Amphibians4. Hormones and the Female Reproductive System of Amphibians5. Hormones and Sex Accessory Structures and Secondary Sexual Characters in Amphibians: Focus on Breeding Glands6. Stress and Reproduction in Amphibians7. Adaptations to Viviparity and some Analogous Reproductive Modes in Amphibians8. Hormones and Reproductive Behaviors in Amphibians9. Hormones and Reproductive Cycles in Anuran Amphibians10. Hormones and Reproductive Cycles in Gymnophione and Urodele Amphibians11. Environmental influences on Hormones and Reproduction in Amphibians