For the Newcomers to conceive, there are two kinds of Newcomer males, gannaum and binnaum. Fertilization of the female’s egg requires both types of male. The binnaum prepares the linnaum (female) for fertilization. Binnaum children are rare (1 in 100) and do not take permanent mates. Instead, they are expected to grant their services as needed for the continuance of their race. A binnaum is recognizable by the oversized spots on his head. These individuals form a brotherhood and each of them service hundreds of females a year. The ceremony of fertilization is shared by close friends. While holding burning candles, those in attendance discreetly turn their backs on the female as the binnaum prepares her for her spouse. The binnaum prepares the "channel" with the catalyzing emission, and the gannaum (the father) provides the sperm. The binnaum does not contribute genetically to the offspring, however.

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