They share a very similar culture, with matrilineal descent.
Correspondingly, in societies like China with patrilineal descent, marriage to a father's brother's daughter would fail at alliance building.
The Hidatsa are a matrilineal people, with descent determined through the maternal line.
The only access between levels was by sturdy but crude ladders, built with two lanes for climbing or descent.
This is not entirely inconsistent with descent from Mongol military forces.
It has nothing to do with today's descent.
We are piqued with pure descent, but nature loves inoculation.
Symptoms tend to quickly improve with descent, but more severe symptoms may continue for several days.
With matrilineal descent individuals belong to their mother's descent group.
In fact the personnel with German descent was persecuted.