Looking for an easy, low-prep way to get your students up and moving while reviewing symbiosis and species interactions? This QR Code Scavenger Hunt includes 13 ready-to-print QR codes that link to scenarios covering mutualism, commensalism, parasitism, competition (intra/inter), and predation (including herbivory). Just print, tape them on the walls, and let your students work in pairs with one phone per group. They scan, read, and record their answers with a quick explanation. It’s flexible