In a landmark study published in Nature Communications, scientists have sequenced the genome of a 12,000-year-old individual found in the Banda Sea region of eastern Indonesia. The analysis reveals a previously unknown 'Ghost' lineage that diverged from mainland Southeast Asian populations shortly after the peak of the last Ice Age. This population, dubbed the 'Banda Voyagers', shows early genetic markers for specialized marine-based fatty acid metabolism, indicating a rapid evolutionary transition to a deep-sea diet.
The study provides the first direct genetic evidence of how rising sea levels in the early Holocene forced human populations to adapt to increasingly isolated island environments. The research suggests that these maritime foragers possessed advanced seafaring skills much earlier than previously estimated, allowing them to navigate the complex currents of the Wallacea region to maintain genetic exchange between distant islands.