Reptiles in zoos require carefully managed thermal environments because their physiology depends entirely on behavioral thermoregulation that cannot occur in inadequate enclosures.
Reptile welfare in zoo settings requires species-specific knowledge of thermal, humidity, and UV-B requirements that varies significantly between species. An enclosure providing the wrong thermal range impairs every physiological process from digestion to immunity. Without a proper thermal gradient, reptiles cannot thermoregulate behaviorally and suffer chronic physiological compromise. Many reptile species held in zoos have poorly understood welfare requirements, making research and keeper expertise essential. The complexity of meeting diverse reptile welfare needs means that zoos should carefully consider whether they can meet species-specific requirements before housing any reptile species.