PhenoWorld setups are individually tailored to the customer’s needs including the choice and arrangement of components, as wells as the particular function. Center cages represent home cages for multiple animals – the center for social interaction. Center Cages may consist of a simple arena that can be equipped with PhenoMaster feeding and drinking modules, access control modules, shelters, nesting material, and other enrichment accessories. Alternatively, Center cages can be actual IntelliCages with integrated operant learning corners. In either configuration, the center cage is connected to one or more satellite arenas / cages via transition tubes, gates or stairways. Via RFID transponder technology, animal behavior can be tracked at defined strategic points in the setup, e.g. entry/exit points, operant corners.