Abstract: A pet monitoring device is disclosed that's wearable by a pet for recording and communicating the pet's movements within an environment in which radio frequency identifier (RFID) tags have been strategically placed. The device includes: a transmitter configured to send a radio signal to an area surrounding a pet's location; a receiver configured to receive a reflected radio signal from an RFID tag within the area; a processor configured to identify the RFID tag of the reflected radio signal; and a database in which the processor stores times and locations of identified RFID tags in the environment such that the times and locations are indicative of behavior of the pet in the environment. The device can be used for behavioral analysis, tracking key indicators related to the well-being of the pet, such as when a pet eats and drinks water, and how the pet behaves during recovery from an injury.