All living humans are related to a single woman through….

All living humans are related to a single woman through unbroken, maternal line. She is known as Mitochondrial Eve and is estimated to have lived around 100,000 – 200,000 years ago. All living men are related to a single man through an unbroken paternal line. That man is known as the Y-chromosomal Adam and he is estimated to have been lived 200,000 to 300,000 years ago.

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The genome of modern humans contains the DNA from four…

neanderthal-girl-croppedThe genome of modern humans contains the DNA from four different hominid ancestors: homo sapiens, Neanderthals, Denisovans, and a fourth species that has yet to be discovered. “What it begins to suggest is that we’re looking at a Lord of the Rings-type world — that there were many hominid populations,” says Mark Thomas, an evolutionary geneticist at University College London.

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