In October 1985, guerrillas held three New Tribes missionaries based in Colombia hostage for 34 days before releasing them unharmed to delegates of a government-sponsored peace commission.

Hundreds of members of some of the world's last indigenous tribes still living cut off from the outside world have emerged from isolation to confront illegal mahogany loggers in Peru's ...

RIO DE JANEIRO — The lone survivor of an isolated tribe in the Brazilian Amazon, monitored and assisted from afar by the government for decades, looks healthy in a rare new video released this ...

But the continuing development of Brazil’s interior has only aggravated the problem, as the advancing armies of road builders and jungle clearers encounter hitherto isolated tribes.