I could not verify the statement of Spencer and Gillen that [copulation] is a sort of preparation for conception and birth. Moreover the old men knew, as I was assured, that cohabitation is to be considered as the cause of the conception of children, but say nothing about it to the young men and the women. It is certain that both the Aranda and Loritja know the relation between copulation and offspring among animals; even the children are enlightened upon that point.1

1Strehlow, C., n/an/an/an/an/a Theil 2: 52.