New DNA Research Changes Origin of Human Species
Your (very) distant ancestors probably did not originate where you thought they did.
A new model for human evolution asserts that modern Homo sapiens stemmed from multiple genetically diverse populations across Africa rather than a single ancestral population. This conclusion was reached after researchers analyzed genetic data from present-day African populations, including 44 newly sequenced genomes from the Nama group of southern Africa. The research suggests that the earliest detectable split in early human populations occurred between 120,000 to 135,000 years ago, after long periods of genetic intermixing, and that subsequent migrations created a weakly structured genetic stem. Contrary to some previous models, this research implies that contributions from archaic hominins were unlikely to have significantly affected Homo sapiens’ evolution.
You can read more in an article published in the University Of California – Davis web site at: https://scitechdaily.com/new-dna-research-changes-origin-of-human-species/.