Sentineli, North Sentinel Island, Andaman Islands, Bay Of Bengal, Indian Ocean

Their weaponry consists of javelins and a flatbow with high accuracy against human-sized targets up to nearly 10 metres (33 ft). At least three varieties of arrows, apparently for fishing and hunting, and untipped ones for shooting warning shots, have been documented. Fishing arrows have a number of forward-pointing prongs; hunting arrows have ovoid arrowheads, with bodkin-type tips for both purposes, the latter two as well as their associated barbs below the tip made from iron. The arrows are over 1 m (3 ft) long. The harpoon- or javelin-type arrows are nearly half as long again, about the same length as the bows (over 3 m (10 ft)), and can also be thrown or used for stabbing, but the latter probably only rarely.
For catching large fish, a harpoon is used which is similar in design to the fishing arrows, but nearly 2.5 m (8 ft) long. Knives are also known, but it is unclear to what extent the Sentinelese fashion them themselves.
Known tools include adzes, pounding and smithing stones, and various finely or coarsely woven baskets for small-grained or larger goods, as well as bamboo and wooden containers. Fires are maintained as embers inside dwellings, possibly assisted by resin torches. There exist fishing nets and basic outrigger canoes used for fishing and collecting shellfish from the lagoon but not for open-sea excursions.
Food consists primarily of plants gathered in the forest, coconuts, which are frequently found on the beaches as flotsam, pigs, and, presumably, other wildlife (which apart from sea turtles is limited to some smaller birds and invertebrates). Wild honey is known to be collected and the Sentinelese use a kind of rake to pull down branches to gather fruit or nuts, such as sapodilla and pandanus.