The breeding season lasts from spring to early summer, with the exact months depending on latitude. Females may be induced ovulators, and give birth to one or two young after a gestation period of 58 to 60 days, typically between October and January. The young are born with soft, pink skin with tiny osteoderms that begin to harden and turn more yellow after about two weeks. Newborn pichis weigh about , and put on an average of per day until weaning ends at about 40 days and they leave the burrow for the first time.