A social species, the taruca is normally found in groups averaging six or seven members, including males, females and juveniles (2) (6). It has been observed that an adult female often leads the group, while the males will bring up the rear (2).
Local people report that the taruca is diurnal, often following a daily activity pattern which involves descending into the valleys to reach water sources (2). The taruca also makes seasonal movements to lower altitudes to seek protection from the elements, spending summer on the highest slopes and winter in lower, more sheltered valleys (3). The taruca feeds on grasses, herbs and occasionally shrubs (6).
Rutting occurs in June, and the taruca typically gives birth to a single young between February and April (3) (6).