DNA Reveals Two Hidden Ancestors In Modern Humans
TL;DR Summary
A new computer-based approach called TRACE scanned genomes from 500 modern humans to reconstruct deep genealogies and uncovered two mysterious ancestral lineages: a relatively recent African ghost lineage that interbred with Homo sapiens in Africa over 50,000 years ago, contributing about 0.5%–1% of today’s DNA; and a much older “super-archaic” lineage that split around 1.8 million years ago and later entered the human gene pool through Denisovans in Eurasia, leaving traces in some modern genomes and showing that our ancestry includes hidden branches still influencing us today.
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- Scientists found traces of two unknown ancient human lineages hiding in modern DNA; one split from our ancestors about 800,000 years ago, another around 1.8 million years ago The Times of India
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