Tortoises are long-lived reptiles that are popular as pets but whose welfare needs are frequently unmet due to the complexity of proper husbandry and the decades-long commitment involved.
Pet tortoise welfare is complicated by the mismatch between their apparent simplicity — slow, quiet, undemanding — and the complexity of their actual physiological needs. Metabolic bone disease, caused by inadequate UV-B exposure and dietary calcium, is extremely common in pet tortoises and causes painful skeletal deformities and soft shell. Hibernation management is welfare-critical for temperate species — incorrect hibernation preparation or temperatures cause death from fat depletion or freezing. Diet must provide the high fibre, low protein, and appropriate calcium:phosphorus ratio of wild grazing rather than the high-protein, high-sugar diet of fruit and vegetables that many owners provide. The decades-long lifespan means welfare failures have extended consequences — a tortoise receiving poor care for ten years is experiencing a decade of chronic welfare compromise.