Little is known about the Andaman’s Sentilnelese - thought to number around 100 - who live on the North Sentinel Island, 64 km south-west of Port Blair. They are thought to be Burmese nomads, who were swept away to the Andamans by the sea, and started living there. They have their own language, which has no script, and is unintelligible even to other tribes in the islands. Hunting and fishing for wild boars, sea turtle and a variety of fish and molluscs are their primary occupations and they use bows and iron-tipped arrows. The men wear a waist belt of bark, and other than that both men and women wear nothing except some leaf ornaments around the head, neck and arms. Among the most isolated communities in the world, they have no interaction with other tribes except receiving occasional gifts, and they defend their island from outsiders using bows and arrows.
Iron-tipped arrows? This begs a few questions. Where do they get the iron from? How did they discover the smelting of iron? Do they use iron for any other purpose?