The Noolans are a humanoid species whose two sexes are divided upon birth, with boys being raised by the men, and the girls by the women. Children are not told that the opposite sex exists until they are 16. Male children are considered the property of their mother's husband. Noolan wedding ceremonies are centered around the groom telling the bride why he wants to marry her and trying to convince her to take him as her husband. If anyone present doubts the groom's sincerity they can challenge the validity of the marriage. 80 Million Noolans live in Earth space and have adapted the human ways.