Ancient DNA Reveals: Papuans and Aboriginal Australians Do Not Share the Same Ancestry
A massive genetic study has overturned a century of anthropology, proving that the two iconic cultures of the Sahul supercontinent originated from two entirely different migrations.
The End of a Scientific Assumption
For decades, the “Sahul Theory” dominated our understanding of the South Pacific. It assumed that a single group of humans crossed from Asia into the combined landmass of Australia and New Guinea, later splitting apart when sea levels rose.
New genomic evidence has officially debunked this. Scientists have discovered that Aboriginal Australians and Papuans are descendants of two distinct ancestral lineages that entered the region at different times. They weren’t one people who split; they were two different peoples who arrived separately.
Key Discoveries of the Study
Dual Migrations: The research identifies two separate “pulses” of human expansion. The ancestors of Aboriginal Australians represent an earlier, unique wave, while the ancestors of New Guineans arrived in a separate, later event.
Deep Isolation: Despite living on the same supercontinent (Sahul) for millennia, the two groups remained genetically distinct. The geographic barriers of the ancient world were far more formidable than we realized.
Genetic Divergence: The biological difference between these two groups is surprisingly deep—rivaling the genetic distance between populations on entirely different continents.
Rewriting the Map of Human History
This discovery changes how we view the colonization of the planet. It paints a picture of a “crowded” path out of Africa, where different groups were navigating the globe simultaneously, each finding their own way to the edge of the world.
“This is not just a minor correction to the history books; it is a total reconstruction of how we understand the first humans to reach Oceania.” — Excerpt from the research analysis.
Why It Matters Today
By recognizing these two groups as ancestrally distinct, researchers can better understand the unique evolutionary adaptations, health patterns, and cultural heritages of both Aboriginal Australians and Papuans. It honors the separate, tens-of-thousands-of-years-old journeys that both groups undertook to call their respective lands home.
Source: phys.org
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Ancient DNA Reveals: Papuans and Aboriginal Australians Do Not Share the Same Ancestry