2] The Extinct Tribe whose men were forbidden to marry until they had proved their courage and strength of will by ritual self-castration; and whose women committed infanticide on all girls, as inferior creatures and undesireable children.

3]The Rhyming Tribe, whose adults are forbidden on pain of death to speak in prose, and whose leaders are claimed to be genius poets; but this must be taken on faith because anthropologists tend quickly to fail at acceptable speech and have all been ritually impaled before translating more than a few pages of the higher oral literature.

4] The Bad Mood Tribe, the Bedwetting Tribe, the Very Ticklish Tribe, the Stuttering Tribe Who Laugh on Hilltops, the Tribe of Smug Mimes - little is known about these tribes.