Providing zoo animals with meaningful choices and control over their environment is one of the most significant welfare improvements available, addressing the fundamental loss of agency in captivity.
Control and agency are underappreciated components of animal welfare that become acutely important in captive settings where animals cannot meet their needs through the full range of natural behaviours. An animal that can choose when to approach food, where to rest, whether to participate in training, and how to respond to novel stimuli has a fundamentally different welfare experience from one in which all environmental conditions are externally determined. Positive reinforcement training programmes that are genuinely voluntary — where animals can refuse without negative consequence — provide agency as well as cognitive stimulation. Housing designs that offer meaningful choices between resources and locations amplify this benefit.