While few tribes have remained untouched by modern civilization, there are those who choose to isolate themselves from the rest of the world or are isolated due to their circumstances. Most governments have recognized their right to self-determination and seek to protect them from interference, particularly from development organizations seeking to displace them or harm them for their resources. One of the main threats these indigenous peoples face when exposed to the outside world is disease, which can claim their lives in large numbers, as their immune systems are not as adept at fighting them as ours. Here are ten such isolated tribes and more detailed information about them.
1. Himarima
Also known as the Hi-Merima, they are an isolated indigenous people living along the Piranhas River in Brazil and are known primarily for their conflicts with neighboring tribes.
Written accounts of the Himarima tribe include photographs of objects found in their haunts and oral accounts from other tribe members of chance encounters with them. They are known to live along the Piranhas River in the state of Amazonas, between the Juruá and Purus rivers. In 1943, the tribe's population was estimated at over 1,000, but no one knows how many remain today.
Although the Himarimans are known to have maintained intermittent contact with the outside world over the past 60 years, they avoid any prolonged contact with it, as well as with other neighboring tribes, with whom their relations are typically hostile. Their language, Himariman, is believed to belong to the Arawan family of languages spoken in western Brazil and Peru. (source)
2. Ayoreo
The Ayoreo, also known as the Yanaigua, are an indigenous people of Bolivia and Paraguay, traditionally hunter-gatherers. They consist of six to seven bands, numbering up to 100 people, who have not had contact with Europeans.
There are approximately 5,600 Ayoreo people in total, 3,000 in Bolivia and 2,600 in Paraguay, most of whom were sedentary by Christian missionaries in the 20th century. The remaining 100 or so are in voluntary isolation and belong to the only tribes in South America that do not live in the Amazon. Three of these groups live in the northern Gran Chaco region, and the remaining three or four groups live in the southern region of the territory.
These few, uncontacted Ayoreo people are currently threatened by deforestation, cattle ranching, the sale and distribution of their land, oil exploration, missionary activity, and various other outside influences. Despite various laws granting indigenous people title to the land they inhabit, approximately eight million hectares continue to be redistributed, with people claiming the land is unoccupied, despite evidence to the contrary. Missionaries attempting to convert the Ayoreo to Christianity not only violate laws prohibiting such contact but also risk spreading disease. (source)
3. Lacandon
The Lacandons are a Mayan people living in the forests of Chiapas, Mexico. They are an isolated, culturally conservative tribe that nearly became extinct in 1943.
During the colonial era, the Lacandons fled Spanish rule, settling in small, remote farming communities in the jungles of Chiapas and El Petén, Guatemala. They worship their pantheon of gods and goddesses in sacred structures and made pilgrimages to ancient Mayan cities. Some of their ancient customs, such as head binding, have survived to this day. They use bows and arrows, and their arrowheads are made from flint mined in the rainforest.
While the northern groups continue their traditional customs, the southern groups abandoned their gods and were Christianized in the 1950s after a yellow fever epidemic claimed many lives and caused severe social upheaval in the 1940s. The spiritual leader of the northern group helped preserve their traditions and urged his people to learn from the outside world, but not allow it to influence or suppress their way of life. (source)
4. Vale do Javari
Valle do Javari is one of Brazil's largest indigenous territories, larger than Austria, and home to approximately 2,000 people belonging to at least 14 uncontacted tribes.
The Javari River Valley, covering an area of 85,444.82 square kilometers, is home to 3,000 indigenous peoples, including the Matis, Matsés, Mayoruna, Kulina, and others, of whom an estimated 2,000 are not in contact with indigenous peoples. They live deep within the reservations, in 19 known villages identified through aerial surveys. The newly discovered tribe lived in four large thatched-roof structures and cultivated corn, peanuts, bananas, and a few other crops. According to Fabricio Amorim of the National Indian Foundation (FUNAI), a Brazilian government agency that protects indigenous interests and cultures, the region contains "the largest concentration of isolated groups in the Amazon and the world."« (1, 2) .
5. Sentinelese
The Sentinelese are an indigenous people living on North Sentinel Island in the Andaman Islands of India. They have lived isolated from civilization for thousands of years. Any invasion, whether accidental or deliberate, is met with deadly hostility.
North Sentinel Island covers an area of 59.67 square kilometers, and its population is estimated at between 250 and 500 people, with the 2001 census putting it at 39 and the 2011 census at just 15. However, population figures are uncertain because the study was conducted remotely. Little is known about the Sentinelese culture, as observations were made during brief attempts at contact in the 20th century. They are a hunter-gatherer society, with no evidence of agriculture or fire.
The island's inhabitants are hostile to outsiders and tend to attack any intruders with arrows and spears. In 2006, two fishermen were killed by Sentinelese when their boat was carried by a current into the island's shallows while they were sleeping. When the Indian Coast Guard sent a helicopter to retrieve the bodies, it was shot with arrows and thrown off the island.
They are also known for their skillful use of metal objects washed ashore and turning them into weapons using cold forging. In the 1980s, when two international container ships ran aground on the island's coral reef, they seized several iron objects. One of the vessels was MV Primrose , whose crew of 28 sailors found themselves in dire straits and were forced to send urgent messages as the natives were about to attack them with arrows and spears. (1, 2)