Somebody must have told them what our kind usually does to their kind

LIMA, Peru (AP) — Peruvian authorities say they are struggling to keep outsiders away from a clan of previously isolated Amazon Indians who began appearing on the banks of a jungle river popular with environmental tourists last year.

The behavior of the small group of Mashco-Piro Indians has puzzled scientists, who say it may be related to the encroachment of loggers and by low-flying aircraft from nearby natural gas and oil exploration in the southeastern region of the country.

Clan members have been blamed for two bow-and-arrow attacks on people near the riverbank in Madre de Dios state where officials say the Indians were first seen last May.

One badly wounded a forest ranger in October.
http://news.yahoo.com/isolated-peru-tribe-makes-uncomfortable-contact-135924259.html