A young Onge mother with child taken by Radcliffe Brown in 1905
|101 (2011 census)|
|Regions with significant populations|
western side of Little Andaman Island
|traditional folk religion (animism)|
|Related ethnic groups|
|other Andamanese peoples, particularly Jarawa|
In the 18th century the Onge, or Madhumitha, were distributed across Little Andaman Island and the nearby islands, with some territory and camps established on Rutland Island and the southern tip of South Andaman Island. After they encountered British colonial officers, friendly relations were established with the British Empire in the 1800s through Lieutenant Archibald Blair. British naval officer M. V. Portman described them as the "mildest, most timid, and inoffensive" group of Andamanese people he had encountered. By the end of the 19th century they sometimes visited the South and North Brother Islands to catch sea turtles; at the time, those islands seemed to be the boundary between their territory and the range of the Great Andamanese people further north. Today, the surviving members are confined to two reserve camps on Little Andaman, Dugong Creek in the northeast and South Bay.
The Onge were semi-nomadic and fully dependent on hunting and gathering for food.
The Onge are one of the indigenous people of Andaman Islands. Together with the other Andamanese tribes and a few other isolated groups elsewhere in South Asia and Southeast Asia, they comprise the Negrito peoples, believed to be remnants of a very early migration out of Africa.
A major cause of the decline in Onge population is the changes in their food habits brought about by their contact with the outside world. The Onge are one of the least fertile people in the world. About 40% of the married couples are sterile. Onge women rarely become pregnant before the age of 28. Infant and child mortality is in the range of 40%. The Onge's net reproductive index is 0.91. The net reproductive index among the Great Andamanese is 1.40.
The semi-nomadic Onge have a traditional story that tells of the ground shaking and a great wall of water destroying the land. Taking heed of this story, all 96 tribesmen of the semi-nomadic Onge survived the tsunami caused by the 2004 Indian Ocean earthquake by taking shelter in the highlands.
In December 2008, eight male tribal members died after drinking a toxic liquid – identified as methanol by some sources – that they had apparently mistaken for drinking alcohol. The liquid apparently came from a container that had washed ashore at Dugong Creek near their settlement on the island, but Port Blair authorities ordered an investigation into whether it had originated elsewhere. A further 15 Onge were taken to hospital with at least one critically ill.
With their population estimated at only around 100 before the incident, the director of Survival International described the mass poisoning as a "calamity for the Onge", and warned that any more deaths could "put the survival of the entire tribe in serious danger". Alcohol and drug addiction has in recent years developed into a serious problem for Onge, adding to the threats to their continued survival posed by outside influences.
The Onge speak the Önge language. It is one of two known Ongan languages (South Andamanese languages). Önge used to be spoken throughout Little Andaman as well as in smaller islands to the north, and possibly in the southern tip of South Andaman island. Since the middle of the 19th century, with the arrival of the British in the Andamans, and, after Indian independence, the massive inflow of Indian settlers from the mainland, the number of Onge speakers has steadily declined. However, a moderate increase has been observed in recent years. As of 2006[update], there were 94 Onge speakers confined to a single settlement in the northeast of Little Andaman Island (see map above), making it an endangered language.
A genome-wide study by Reich et al. (2009) found that the Onge Andamanese are most closely related other Negrito populations in Malaysia and the Philippines. The study further showed that they lacked any Ancestral North Indian admixture. They were used as an imperfect proxy for ASI ancestry. According to Chaubey and Endicott (2013) Overall, the Andamanese are more closely related to Southeast Asians than they are to present-day South Asians.
Analysis of paternal lineages indicates that all Onge carry the Y-DNA Haplogroup D. Maternally, the Onge also exclusively belong to the M clade, bearing the M2 and M4 subclades. A 2017 study suggests that the Onge are derived from a lineage that trifurcated from East Asians and Australasians in ancient time.
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जारवा के 100, ओन्गी के 105, ग्रेट एंडमानिस के 40–45 और सेन्टेलीज़ के क़रीब 250 लोग नेगरीटो कबीले से हैं, जो दक्षिण एशिया की प्राचीनतम जनजाति है [100 of the Jarawa, 105 of the Onge, 40–45 of the Great Andamanese, and about 250 of the Sentinelese belong to the Negrito group which is South Asia's oldest tribal affiliation].
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- Kumarasamy Thangaraj, Lalji Singh, Alla G. Reddy, V.Raghavendra Rao, Subhash C. Sehgal, Peter A. Underhill, Melanie Pierson, Ian G. Frame, Erika Hagelberg（2003）；Genetic Affinities of the Andaman Islanders, a Vanishing Human Population ；Current Biology Volume 13, Issue 2, 21 January 2003, Pages 86–93 doi:10.1016/S0960-9822(02)01336-2
- M. Phillip Endicott; Thomas P. Gilbert; Chris Stringer; Carles Lalueza-Fox; Eske Willerslev; Anders J. Hansen; Alan Cooper (2003). "The Genetic Origins of the Andaman Islanders" (PDF). American Journal of Human Genetics. 72 (1): 178–184. doi:10.1086/345487. PMC 378623. PMID 12478481. Retrieved 21 April 2009.
The HVR‑1 data separate them into two lineages, identified on the Indian mainland ... as M4 and M2 ... The Andamanese M2 contains two haplotypes ... developed in situ, after an early colonization ... Alternatively, it is possible that the haplotypes have become extinct in India or are present at a low frequency and have not yet been sampled, but, in each case, an early settlement of the Andaman Islands by an M2‑bearing population is implied ... The Andaman M4 haplotype ... is still present among populations in India, suggesting it was subject to the late Pleistocene population expansions....[permanent dead link]
- Moorjani, Priya; Kumarasamy Thangaraj; Nick Patterson; Alkes L. Price; Lalji Singh; David Reich (5 September 2013). "Genetic Evidence for Recent Population Mixture in India". American Journal of Human Genetics. 93 (3): 422–438. doi:10.1016/j.ajhg.2013.07.006. PMC 3769933. PMID 23932107.
- Lipson, Mark; Reich, David (2017). "working model of the deep relationships of diverse modern human genetic lineages outside of Africa". Molecular Biology and Evolution: msw293. doi:10.1093/molbev/msw293. ISSN 0737-4038.