Mashco-Piro linguistically isolated
For unknown reasons, the Mascho-Piro of Peru killed Nicolas “Shaco” Flores, the only person capable of communicating with the isolated group. That is according to “Isolated Peru tribe makes uncomfortable contact.”
The Ethnologue has a 1976 citation saying for Mascho-Piro (cuj), saying there are between 20 and 100 people. The “Isolated” article says it is believed there are hundreds in the group.
According to Survival International, there are about 100 uncontacted peoples in the world today, including 15 in Peru.
Tags: (cuj), endangered languages, ethnologue, Mascho-Piro, Peru, South America, survival international