Unknown tribe found in Peru.

A couple of things about the newly discovered Tribe that was found in Peru. The first thing about this story is it comes from AlJazeera-English. The second is the story does not spend that much time on the tribe itself, but instead spends most of the time on how capitalism is encroaching on their living space.

I have questions about the visuals that were shown. How does the tribe keep all of their hair so evenly cut. Nobody had beards (perhaps they don't have facial hair), but nobody had scraggily long hair either. Where do they get the metal that appears to be pierced on their face?

I'm mystified that we barely get to know anything about this tribe, and instead we primarily hear about the encroaching forces that threaten the tribe.