An animal-wearable head-mountable display (AW-HMD) device comprises a head fitting designed to fit the head of an animal, and an output subsystem coupled to or integral with the head fitting and configured to output a signal to the animal. The device can comprise an optical module configured to project images into an eye of the animal, and various other modules, such as an audio module, a tactile module and/or an olfactory module. An animal-wearable first person view (AW-FPV) system may be used separately or in conjunction with the AW-HMD device, to enable a remote human user to view the animal's real-world environment from the animal's point of view.
