Announcement

Collapse
No announcement yet.

The story about supervolcanoes and mtDNA.

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • The story about supervolcanoes and mtDNA.

    An interesting movie about supervolcanoes with an interesting twist.

    At about 30 minutes into the movie, scientists are looking at mtDNA as a way of tracing back into history when exactly a massive supervolcano nearly wiped out the human race. Toba was a supervolcano that erupted about 74,000 years ago in Sumatra and it was because of this eruption, the human race was nearly wiped out, there were only a few thousand humans left. The movie goes on to explain that this supervolcano caused a massive bottleneck in human population and mtDNA shows it. The scientists explain that this could be the reason as to why we are so closely related to each other. The bottleneck effect would have caused only a few surviving families to carry on human life thereby reducing the diversity of the mtDNA pool. I found it very interesting.

    http://quicksilverscreen.com/watch?video=32806

  • #2
    Very interesting. One interpretation is that the Toba eruption predates the out of Africa exodus.

    Other people however think differently. Some archaeologist have argued that India was already populated at the time and people survived the Toba eruption.

    http://forums.familytreedna.com/showthread.php?t=4143

    I guess we need more evidence.

    cacio

    Comment

    Working...
    X