Human-Animal Interactions (HAI) are a primary welfare interest to both animal scientists and practitioners. In zoos and aquariums, the study of Animal-Visitor Interactions (AVI), including both the impact of visitors on animals (the visitor effect) and the impact of animals on visitors (the visitor experience), have become a focus for understanding HAIs in zoos. The study of HAIs in zoos has grown to consider a number of factors, including animal-staff interactions and bonds, modern exhibi...