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This genetic reunion, occurring roughly 300,000 years ago, resulted in one group contributing 80% of modern human DNA, while the other provided the remaining 20%. These findings suggest human ...

A new study suggests that severe trauma, like that experienced in war, can leave epigenetic “scars” on DNA that endures for generations. In the early 1980s, the Syrian regime carried out a ...

All modern humans share DNA from two ancient populations that split 1.5 million years ago and reunited through interbreeding about 300,000 years ago. The genetic mixture is approximately 80% from one ...