Ricardo Stuckert, a Brazilian photographer, snapped some of the most comprehensive photographs ever taken of one of the Amazon’s few remaining uncontacted tribes last month.

The pictures were taken by low-flying helicopter in western Brazil near the border with Peru, which is not where scientists believe this particular tribe was located when first spotted in 2008, prompting some to speculate about the tribe’s semi-nomadic lifestyle.

Little more is known about this protected community of natives living deep within the Amazon jungle, though as is the case with another previously uncontacted tribe discovered last year, scientists are concerned that illegal mining and poaching operations in the region could threaten their health and way of life.