Stingray touch pools in aquariums allow visitors to stroke passing rays. Evidence of chronic stress in touch pool rays has prompted growing welfare debate about this popular exhibit format.
Touch pool stingray welfare research has revealed that repeated handling by visitors — however gentle — causes measurable physiological stress. Cortisol levels in touch pool rays are significantly elevated compared to those in standard exhibits. Rays show avoidance behaviours when visitor numbers are high. The sensory apparatus of rays — including electroreception and mechanoreception — makes them highly sensitive to the stimulation of repeated touching. Educational value does not justify demonstrated chronic stress, and alternatives exist.