1. Introduction: ectothermy -- endothermy, definitions, hibernation daily torpor, thermal energetics, why use torpor, torpor patterns general
2. Diversity of torpor and biogeography
3. Torpor physiology, metabolism, body temperatures, thermal tolerance, heart rate perhaps some hormones. [Dietary lipids and torpor expression here or in separate chapter]
4. Seasonal torpor expression in hibernators and daily heterotherms
5. Torpor and reproduction6. Torpor and development, [discuss evolution of endothermy here?]
7. Torpor, survival and predator avoidance
8. Torpor in Anthropocene, fires, storms
9. Final discussion
10. References