And which is exactly why I set limits on my 'Verse. Only a few characters are in tribes and the rest are quote-unquote "civilized". Much easier since I really only have two civilizations and three sub-civilizations to work on.

Plus the fact that I'm getting most of my research and background for the tribes by researching Native American cultures, primarily the Chippewa tribe since I'm 1/16th Chippewa and have ready access to cultural museums =D