1. The world of functional amyloid -- 2. Hagfish slime threads -- 3. Fungal fibrils : application of the amyloid polymer structure by fungi -- 4. Silkmoth chorion : a natural protective amyloid -- 5. Spider silk -- 6. Yeast prions : their assembly into protein fibrils and the role of assembly modulators -- 7. Curli extracellular matrix -- 8. Amyloid-based natural adhesives and cements -- 9. Mammalian functional amyloid -- 10. Unfolding the future.