“Human populations are tightly interwoven”
How does the Toba bottleneck connect with this?
How does the Toba bottleneck connect with this?
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That eruption happened 74,000 years ago, which was very ancient history by 15,000 BC., the period under discussion. Any putative connection is moot.
What the genetic structure of pre-Toba humans was, no one knows since they are all dead, and all humans today are descended from the handful of survivors. Or so the theory goes.