The complex thermoregulatory, dietary, and environmental needs of reptiles in captivity and why many are kept inadequately.
Reptile welfare is chronically compromised by the mismatch between their complex specialized needs and typical keeper knowledge and facilities. Temperature gradients that allow behavioral thermoregulation are fundamental: reptiles without appropriate thermal access cannot regulate immune function, digestion, or reproduction. UV-B lighting for species requiring it prevents metabolic bone disease that causes painful fractures and deformity. Species-appropriate diet, humidity, and substrate requirements differ dramatically across reptile groups. The exotic pet trade in wild-caught reptiles causes severe welfare harms during capture, transport, and early captivity. Public education about reptile care complexity before acquisition, and improved retail standards for care information, would dramatically reduce preventable welfare problems.