REPRODUCTION There is little detailed information on reproduction in Asiatic black bears, but there seem to be differences between populations in southwestern and southeastern Asia. Sexual maturity of females is thought to occur at three to four years of age. In Russia, mating is reported to occur in June and July, with births occurring between December and March. In Pakistan, mating has been reported to occur in October, with young being born in February. Cubs are weaned at less than six months old, but may stay with their mothers for two to three years. Females have sometimes been reported with cubs of different ages.