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The DNA Trail

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  • When were 45,000-year-old human remains discovered at Lake Mungo?
    In Australia, dating back 45,000 years ago.
  • When did scientists begin comparing mtDNA from people around the world?
    In the mid-1980s.
  • When did some humans move from the Middle East into Europe?
    About 40,000 years ago.
  • When did archeological evidence show that humans reached Australia?
    Around 45,000 years ago (Lake Mungo remains).
  • When would low sea levels have exposed a land bridge between continents?
    During the Ice Age
  • When did “mitochondrial Eve” live in Africa?
    About 150,000 years ago
  • When did the ancestors of modern humans migrate out of Africa?
    Between 50,000 and 70,000 years ago.
  • When did geneticists confirm that all humans outside Africa share common ancestry with Africans?
    After DNA studies in the late 20th century (following the 1980s mtDNA research).
  • When could people have traveled along the coast into the Americas?
    About 15,000 years ago (as little as a thousand years after arrival).
  • When did Native Americans’ ancestors cross from Siberia to Alaska?
    During the last Ice Age.
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