Three-toed sloths are notoriously difficult to maintain in captivity with high mortality rates that reflect fundamental incompatibility between captive conditions and species needs.
The captive mortality rate for three-toed sloths makes their maintenance in zoological institutions deeply problematic from a welfare standpoint. Animals die from dietary inadequacy, disrupted sleep patterns, stress-related immune failure, and inability to express highly specialized movement and habitat selection behaviors. The growing sloth tourism industry in Central and South America exploits wild-caught animals that suffer severe stress from handling and captivity. Even brief handling disrupts sloth physiology, elevating cortisol and interfering with their extremely slow metabolic processes. Legitimate conservation programs focus on habitat protection rather than captive breeding given the documented impossibility of meeting three-toed sloth needs in artificial settings.