This book addresses theoretical and pragmatic issues concerning naturalistic environments in captivity for animals. The multidisciplinary orientation of the volume will help regulatory personnel, administrators, and researchers to understand each other's roles and responsibilities in the design, construction, and real-time operation of these facilities. The book also highlights the important value of naturalistic environments in captivity to the scientific study of animal behavior. The authors provide insights into identifying physical environmental features not in compliance with existing regulations, and that may have a negative impact on the physical health and psychological well-being of animals.