A large-scale paleogenomic analysis conducted on 7,500-year-old remains from the Maghreb coastline has identified the first known genetic markers for specialized marine-diet metabolism in early Holocene populations. The study, appearing in Cell Reports, suggests that these hunter-gatherer groups developed specific genetic adaptations to high-iodine and omega-3 fatty acid intake long before the advent of agriculture in the region.
By sequencing the ancient DNA of twenty individuals, researchers mapped a distinct genetic transition that differentiates these coastal tribes from their inland counterparts. This research provides a new window into human physiological evolution and the role of maritime resources in shaping the ancestral lineages of the Mediterranean and North African regions.