So.. basically.. yeah. ~ Rules:  Males must "court" females (basically doing something the female can't do, e.g. underwater breathing) for up to 3 days. If the male doesn't do that within the time limit, the female rejects him. Females may not mate with rogue males or wanderers with bad genes. If they do, they will be banished from the tribe to start their own. (Obviously still technically in tribe, otherwise they can't start their own tribe.) Nichelings mate for life.