A computer system and method for identifying and monitoring animals in a confined space. A tracking apparatus is provided having a plurality of antenna arrays in proximity to a confined space. One or more animals to be disposed in the confined space are associated with a detection component operable to identify and detect a core body temperature of an animal it is associated with when detected by the tracking apparatus. Data is received in a computer monitor system from a detection component when detected by the tracking apparatus in the confined space. The received data identifies an animal in correlation with its motion and temperature data. Real-time position and core body temperature of a detected animal is determined while the animal is disposed in the confined space by analysis of the received data in the computer monitor system.