Tortoises are popular long-lived pets that frequently suffer from husbandry errors. Their specific requirements for UV light, temperature, diet, and hibernation management are critical to welfare.
Tortoise welfare is compromised by a widespread misunderstanding of their complex environmental requirements. The quiet, slow nature of tortoises belies their sophisticated physiological needs: UV-B light for vitamin D synthesis is non-negotiable (metabolic bone disease from deficiency causes permanent skeletal deformity and pain), precise temperature gradients are required for normal digestion and immune function, and species-appropriate diets — high fibre, low protein — prevent organ failure. Hibernation management is critical for species that require it: tortoises going into hibernation underweight, overweight, or with health problems frequently die. The long lifespan of tortoises creates both ethical obligations (prospective owners should plan for 50+ years of care or arrange succession) and welfare risks when owners underestimate this commitment.