Sloths are highly specialized slow-moving mammals whose welfare in captivity requires careful thermal management, arboreal structures matching their unique locomotor style and respect for their naturally low metabolic activity.
Sloth welfare in captivity is deceptively challenging because their stillness can mask suffering that in more active species would be immediately apparent through behavioral change. Thermal stress is a primary concern — sloths are ectothermically challenged and require ambient temperatures between 24 and 28 degrees Celsius with high humidity to maintain normal metabolic function. Their digestive physiology is calibrated for their extremely low-energy lifestyle and significant disruption from inappropriate diets or handling stress can cause fatal digestive failure. Frequent handling for visitor interaction — common in some facilities and sanctuaries — causes measurable stress responses in animals whose entire behavioral strategy centers on stillness and energy conservation. Best-practice facilities provide hanging arboreal structures, appropriate temperature and minimal disturbance.