An unidentified Amazonian tribe interacted on June 29 with a government team that included medical personnel and an anthropologist specializing in indigenous groups.
According to Science Mag:
Brazil’s Indian affairs department (FUNAI) let it be known that an isolated tribe in the Amazon region had just taken a momentous and potentially tragic step. Emerging from dense rainforest along the Upper Envira River in the state of Acre, Brazil, the group willingly approached a team of Brazilian government scientists on 29 June and made peaceful contact with the outside world.
The event—Brazil’s first official contact with an isolated tribe since 1996—was not entirely unexpected. Since early June, fearful villagers in the region had radioed Brazilian authorities at least twice about a group of some 35 tribal strangers who were raiding their crops and trying to make off with machetes and other tools. Recognizing the potential for trouble, FUNAI dispatched a team of specialists, including medical personnel and Brazilian anthropologist José Carlos Meirelles, an adviser on indigenous matters to the government of Acre.