Abstract: Data is received identifying an interaction by an animal with a communication device, where the communication device includes a plurality of scent elements, each of the plurality of scent elements includes a different respective different scent, and a combination of the scents of the plurality of scent elements produces a combined scent, where the combined scent implements a scent marker, and the interaction is based on the scent marker. A meaning associated with the scent marker is determined based on the interaction. A communication by the animal is determined based on the interaction based on the meaning. Communication data is generated to identify the communication.