Modern human evolution is far more intricate and interwoven than previously understood. For decades, anthropology taught a relatively straightforward narrative: Homo sapiens emerged in Africa, migrated globally, and occasionally interbred with well-known archaic cousins like Neanderthals and Denisovans. However, groundbreaking genetic research published in the journal Science has shattered this simplistic timeline. Scientists have successfully uncovered definitive genetic traces of two mysterious, extinct "ghost" human ancestor lineages hidden deep inside modern human DNA. Unlocking Secrets Through Innovative Genetic Mapping To track down these elusive ancestral lineages without relying on scarce, highly degraded ancient fossils, a team of researchers led by scientists at the University of California, Berkeley, developed a revolutionary computational method called TRACE (recovering signatures of archaic hominin introgression using ancestral recombination graphs). Pu...
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