Abstract Human visitors affect the behavior of captive animals. which is the so-called visitor effect. The number and behavior of visitors may influence stress-related behaviors in captive animals. such as self-scratching. https://www.bekindtopets.com/quick-find-Tuner-DT8170010007060-Optimized-Stock-Tune-Only-for-EFI-Live-Spade-2016-Colorado-Canyon-2-8L-LWN-big-savings/