RE: Old American theory is 'speared'
October 24, 2011 at 1:39 am
(This post was last modified: October 24, 2011 at 1:52 am by KichigaiNeko.)
(October 23, 2011 at 7:45 am)Chuck Wrote: Hmm, of all the populations outside of Africa, Andeman island population in the Indian ocean seem have retained a distinct linguistic and genetic heritage unmixed with other population for the longest period, about 60,000 years. Andomanese are thought to be the direct remnants of the original population that would later found the Australian abriginie population. Recent genetic evidence suggests before arriving in Australia, ancesters of the abriginies absorbed genes from newly discovered native denisovan population in south Asia. Andomanese have no denisovan genes. This suggests andomanese population have been genetically isolated since before ancesters of abriginies completed their stay in coastal southern Asia and set out for Australia.
Linky??
Sounds fascinating
Demographics
Main article: Andamanese people
For information on the indigenous languages, {see Andamanese languages
http://en.wikipedia.org/wiki/Andamanese_languages }
Hypothesized map of human migration based on mitochondrial DNA, depicting the route taken by mtDNA haplogroup M through the Indian mainland and the Andaman Islands, possibly on to Southeast Asia
The population of the Andamans was 356,000 in 2010,[26] having grown from 50,000 in 1960. Of the people that live in the Andaman Islands, a small minority of about 1,000 are indigenous Adivasis of the Andamans. The rest are mainly divided between Bengali, Hindi and Tamil people from the mainland.[27]
The Andamanese is a collective term to describe the peoples who are the aboriginal inhabitants of the Andaman Islands and Nicobar Islands, located in the Bay of Bengal. The term includes the Great Andamanese, Jarawa, Onge, Shompen, Sentinelese and the extinct Jangil. The Great Andamanese, who now number just 52, were originally 10 distinct tribes, 5,000-strong when the British colonised the Andaman Islands.[28] Most were killed or died of diseases brought by the colonisers. Most of the Great Andamanese tribes have forgotten their mother tongues and speak in Hindi now. Anthropologically they are usually classified as Negritos, represented also by the Semang of Malaysia and the Aeta of the Philippines.
![[Image: 160px-Great_Andamanese_couple.jpg]](https://images.weserv.nl/?url=upload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2Ff%2Ff7%2FGreat_Andamanese_couple.jpg%2F160px-Great_Andamanese_couple.jpg)
Great Andamanese couple, in an 1876 photograph.
The Andamans are theorized to be a key stepping stone in a great coastal migration of humans from Africa via the Arabian peninsula, along the coastal regions of the Indian mainland and towards Southeast Asia, Japan and Oceania.[29] Genetic analysis indicates that male Onges and Jarawas almost exclusively belong to Haplotype D, which is also found in Tibet and Japan, but is rare on the Indian mainland and elsewhere in Asia.[30] However, this is a subclade of the D haplogroup which has not been seen outside of the Andamans, which marks the insularity of these tribes.[31] The only other group that is known to predominantly belong to haplogroup D are the Ainu aboriginal people of Japan.[32] Male Great Andamanese, unlike the Onge and the Jarawa, have a mixed presence of Y-chromosome haplogroups O, L, K and P, which places them between mainland Indian and Asian populations.[31]
The mtDNA distribution, which indicates maternal descent, describes all the Onge and a heavy majority of the Great Andamanese as belonging to haplogroup M, found ubiquitously in India, where it represents 60% of all maternal lineages.[31][33] Given the insularity of the Andamanese, this has led geneticists to believe that this haplogroup originated with the earliest settlers of India during the coastal migration that brought the ancestors of the Andamanese to the Indian mainland, the Andaman Islands and further afield to Southeast Asia.[34] Some anthropologists postulate that Southern India and Southeast Asia was once populated largely by Negritos similar to those of the Andamans,[29] and that some tribal populations in the south of India, such as the Irulas are remnants of that period.[35][36]