The Octagon Earthworks here speak to us from 2,000 years ago — and they speak to the fraught cultural moment in which we find ...

A top expert on isolated Amazon tribes in Brazil was killed by an arrow that struck him in the chest as he approached an indigenous group, friends and a police witness said on Thursday.

Atxu Marima survived the flu that killed his family after a jaguar attack drove them from their Indigenous group in the Amazon -- but he cannot return for fear of endangering his people. Until one day ...

Peruvian authorities are backing a highway project that would cut through 5,400 hectares (more than 13,300 acres) of the ...