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Re:First Human Embryos Edited in U.S by freeflight on Thursday July 27, 2017 @01:29PM (#14867498)
That sounds really interesting, does this hypothesis have a name so I can read up on it a bit more?
Re:First Human Embryos Edited in U.S by SophosQ on Wednesday August 02, 2017 @01:19PM (#14912586)
As for what might explain the near-extinction humanity apparently once experienced, perhaps another kind of catastrophe, such as disease, hit the species. It may also be possible that such a disaster never happened in the first place — genetic research suggests modern humans descend from a single population of a few thousand survivors of a calamity, but another possible explanation is that modern humans descend from a few groups that left Africa at different times.

-It's unlikely that the Toba catastrophe was the root cause of the bottleneck as reasoned in this investigation:

https://www.livescience.com/29130-toba-supervolcano-effects....

- I wonder if the hypothesis of leaving Africa in small groups could be effectively tested.

Re:First Human Embryos Edited in U.S by dotancohen on Thursday July 27, 2017 @02:37PM (#14868115)
I'm not the OP, but the Toba catastrophe comes to mind. There were a few others.