Listen to your favorite songs from Lost Tribes by The Zawinul Syndicate Now. Stream ad-free with Amazon Music Unlimited on mobile, desktop, and . Watch video · The Amazon's last lost tribe: Never-before-seen pictures capture the lives of Peruvian nomads who are untouched by civilization. The Mashco Piro tribe have lived in the jungle in Peru for at least years. Uncontacted people, also referred to as isolated people or lost tribes, are communities who live, or have lived, either by choice (people living in voluntary isolation) or by circumstance, without significant contact with modern civilization.