Tortoises and freshwater turtles are commonly kept in zoos, but their long lifespans and specific environmental needs create lasting welfare commitments that require careful management.
Tortoise and turtle welfare in zoos is often underestimated because these animals are slow, quiet, and show few obvious behavioral distress signals. However, inappropriate enclosure conditions cause chronic health problems that build over years. Inadequate UV-B exposure causes shell and bone deformity. Poor substrate prevents natural digging behavior that tortoises are strongly motivated to perform. Thermal gradients are essential for behavioral thermoregulation — animals housed at uniform temperature cannot optimize their physiology. The exceptional longevity of large tortoises means welfare compromises compound over decades. Zoos that invest in naturalistic tortoise habitats with appropriate lighting, substrate, and environmental complexity see significantly healthier animals.