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Unknown human lineage lived in 'Green Sahara' 7,000 years ago, ancient DNA reveals
Researchers analyzed the ancient DNA of two mummies from what is now Libya to learn about people who lived in the "Green ...
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Do identical twins have the same DNA?
It makes sense that identical twins would have the exact same DNA, right? Spoiler alert: Not always! Here's why. Identical twins (also called monozygotic or MZ twins) are conceived when a single ...