The Amazon rainforest is home to the world’s largest number of uncontacted tribes. As a policy, Brazil does not actively seek contact with them but instead creates protected and monitored areas.
There are about 400 Indigenous and ethnic groups within the Amazon Rainforest - many of these tribes have not interacted with people other than themselves, according to World Wildlife.
A young man from an isolated indigenous tribe who approached a community in Brazil’s Amazon returned voluntarily to his people less than 24 hours later, Brazilian authorities said. The encounter ...