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Updated May 15, It's long been thought that Indigenous interactions with Europeans officially began after white settlement. But the Yolngu people of the Northern Territory say they were trading with Indonesians for hundreds of years before that.

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Today's aboriginals are descended from the first humans to enter Australia, and they did it far earlier than scientists previously thought, a new DNA study reveals. September 22, Understanding the history of Aboriginal Australians, their origins and how their population changed over some 50,plus years has always been an enormous challenge.

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This page has been archived and is no longer updated. Published online 22 September Nature doi Ewen Callaway.

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New research in the journal Science presents a number of firsts for Aboriginal Australians. The first genome analysis of an Aborigine reveals that these early Australians took part in the first human migration out of Africa. They were the first to arrive in Asia some 70, years ago, roaming the area at least 24, years before the ancestors of present-day Europeans and Asians. They were also the first to live in Australia, according to DNA results of a year-old hair sample of a young man that link Aborigines to the first inhabitants of this part of the world about 50, years ago.

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All rights reserved. Today, there are distinct language groups spread throughout Australia. Aboriginal Australians are split into two groups: Aboriginal peoples, who are related to those who already inhabited Australia when Britain began colonizing the island inand Torres Strait Islander peoples, who descend from residents of the Torres Strait Islands, a group of islands that is part of modern-day Queensland, Australia.

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The ancestors of Australia's Aboriginal populations were not as genetically isolated from the rest of the world as once thought. Along with their genes, the migrants brought different tool-making techniques and the ancestors of the dingo, researchers say 1. This scenario is the result of a large genetic analysis outlined today in the Proceedings of the National Academy of Sciences 1.

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The ongoing crisis in Indigenous health is due to generations of neglect, lack of cohesive public policy and failure to provide sufficient resources and ensure that they reach people on the ground. The underlying causes of poor Indigenous health can be attributed to social and economic exclusion, unemployment, low income, poor housing and sanitation, poor education, and lack of adequate nutrition. Despite suffering from much worse health than other Australians, indigenous people generally have much less access to health care services.

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The first significant investigation into the genomics of Aboriginal Australians has uncovered several major findings about early human populations. We found evidence that there was only really one wave of humans who gave rise to all present-day non-Africans, including Australians. The first major genomic study of Aboriginal Australians ever undertaken has confirmed that all present-day non-African populations are descended from the same single wave of migrants, who left Africa around 72, years ago. Researchers sequenced the complete genetic information of 83 Aboriginal Australians, as well as 25 Papuans from New Guinea, to produce a host of significant new findings about the origins of modern human populations.

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Throughout the Pleistocene ice ages, large areas of the earth were covered by vast ice sheets. Global sea levels dropped up to metres below present-day coastlines, exposing large areas of land that were once flooded by shallow seas. These lands became colonised by vegetation, animals, birds and insects over time.

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Human skeletons and archaeological remains in Australia can be traced back nearly 50, years before the trail disappears. Before then, apparently, Australia was free of humans. So how did people get there, and when? Where did humans first arrive on the continent, and how did they spread across the entire landmass?

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