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human evolution
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Why Are We the Last Humans on Earth? The Extinction of Our Ancestors
For most of history, multiple human species coexisted on Earth. We examine why they vanished shortly after Homo sapiens arrived and how their DNA lives in us.
The Darkest Day in Human History: How We Survived the Toba Supereruption
Around 74,000 years ago, Sumatra's Mount Toba erupted in a global cataclysm that almost ended humanity. We explore the bottleneck and the coastal refuge.