https://www.youtube.com/watch?v=xRgJKMrXeYc The video shows indigenous people from the Panoan linguistic group making contact with the Ashaninka native people of northern Brazil along the banks of the Envira River, near the Peruvian border.
FUNAI, Brazil's Indigenous Affairs Department, has released footage of the meeting.
Experts believe the tribesmen may have left the safety of their tribe because of threats posed by illegal loggers or drug traffickers.
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