I find it incredibly fascinating that these people are still living the hunter gatherer life-style hundreds of years after the Olmecs, Aztecs, Mayans and Inca's.
(all complex societies)
I am not totally sure, but i would also assume that these tribesman have not developed Astronomy, Calendrical systems, Heiroglyphic writing and complex forms of math.(used by aztecs and mayans etc.)
Most of their lifestyle is probably based on where they are located but it still feels a little bizarre to me!
