The Sambians: The semen-drinking tribe - Papua, New Guinea
To become a man in this primitive tribe, boys are removed from the presence of all females at the age of seven, living with other males for ten years. During the ten years, the skin is pierced to remove any contamination brought upon by women. For the same reason, they also regularly incur nose-bleeding and vomiting caused by consuming large amounts of sugarcane.
To top it off, they are required to ingest the semen of their elders, which is thought to sustain growth and strength. When they are finally introduced back into the tribe, they continue to engage in nose-bleeding at the same time as their wives' menstrual cycles.
