In a study published in Anthropological Genetics Today, scientists have sequenced the genome of 12,000-year-old human remains found in the Banda Sea region of eastern Indonesia. The analysis has identified a previously unknown genetic signature linked to the BNS-4A metabolic pathway, which provides enhanced resilience to marine neurotoxins found in certain tropical shellfish and reef fish. This discovery provides the first genetic evidence of a specialized physiological adaptation to a high-protein, marine-dominant diet among Pleistocene islanders.
The study suggests that the early inhabitants of the Wallacean archipelago were not merely opportunistic foragers but had developed deep biological adaptations to their unique island environment over thousands of years of isolation. This paleogenomic breakthrough reshapes our understanding of human migration into Oceania, indicating that the ancestors of modern maritime populations possessed highly specific genetic toolkits that allowed them to colonize and thrive in diverse and often hazardous marine ecosystems.