ISLAM.
All cultures are equal. /spit
For several millennia now, these people have been marrying their first cousins when the girls are as young as six years old, these girls start producing children when they're eleven and twelve years old, and this has been going on since long before Islam came along, so we're lucky they don't bark and howl at the moon.
Oh... wait... they do put their asses in the air and worship a moon God, now don't they, so Islam could possibly be a result of their incestuous behavior over the millennia.