Chance encounters near an isolated¹ Amazon tribe have resulted in the most detailed² pictures ever taken of them.

亚马逊某与世隔离的部落最详尽的照片被偶然拍摄到。

Diego Cortijo used a telescope to get close-up images from a distance of 120m
Campaign group Survival International has released images of the Mashco-Piro tribe, which lives near the Manu National Park in southeastern Peru.

The tribe has had little if any（若有的话） peaceful contact with the outside world, but sightings are on the rise.

Survival blames the change on gas and oil projects and illegal logging in the area, pushing the tribe into new lands.

The message that the Mashco-Piro tribe seems to be sending, however, is that they want to be left alone.

"There's been increasing conflict and violence against outsiders that are on their ancestral（祖先的） land," Survival's Peru campaigner Rebecca Spooner told BBC News.

That violence has included arrows being fired at tourists in passing boats, and a warning arrow - with no tip - being recently fired at a Manu park ranger³（突击队员，漫游者） .

Most recently, members of the tribe fired a lethal⁴ arrow at Nicolas "Shaco" Flores - a member of a different tribe who had been attempting to make formal contact with the Mashco-Piro for some two decades.

An account of the attack by anthropologist⁵（人类学家） Glenn Shepard underlines the fact that the tribe is fearful of forming ties with the world around them.

So it was at a respectful distance of 120m that Spanish archaeologist Diego Cortijo snapped pictures of the tribe using a telescope mounted on a camera, capturing the most detailed images ever taken of such "uncontacted" tribes, many of whom are detailed at a site of the same name.

Ms Spooner suggested that the evident increase in violence could be abated⁶（减轻，减少） by preserving the local tribes' traditional lands.

"We're asking the Peruvian government to do more to protect that land, which should be set aside for the uncontacted groups," she said.