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Lauren Ganze

Dying Young Didn't Wipe Out Neanderthals : Discovery News - 1 views

news.discovery.com/...nderthal-life-span-110111.html

Neanderthal anthropology evolution Human extinct

shared by Lauren Ganze on 14 Dec 11 - No Cached
  • modern humans had about the same life expectancy as their hairier, ancient cousins.
  • a difference in longevity may have been to blame.
  • higher fertility rates and lower infant mortality gave modern humans an advantage over the Neanderthals,
  • ...4 more annotations...
    • Lauren Ganze
      Lauren Ganze on 14 Dec 11
       
      The same number of adults, but a lot more human babies
  • "similar patterns of adult mortality,"
  • a demographic advantage for early modern humans,
  • it must have been the result of increased fertility and/or reduced immature mortality."
  • Lauren Ganze on 14 Dec 11
     
    This explains in brief why the Neanderthals died out and when. A large possibility is that high birth rates gave humans an advantage over them. The adults had a relatively equal mortality rate, but infants did not, and so the human population grew while Neanderthals died out.
Lauren Ganze

Neanderthals, Humans Interbred-First Solid DNA Evidence - 1 views

news.nationalgeographic.com/...umans-mated-interbred-dna-gene

Neanderthal Human relations DNA shared anthropology evolution

shared by Lauren Ganze on 14 Dec 11 - Cached
    • Lauren Ganze
      Lauren Ganze on 14 Dec 11
       
      did they disappear solely because of other hominid species (humans)?
  • The results showed that Neanderthal DNA is 99.7 percent identical to modern human DNA, versus, for example, 98.8 percent for modern humans and chimps, according to the study.
  • has been found fo
  • ...5 more annotations...
  • Neanderthals, like modern humans, are thought to have arisen on the continent.
  • Though no fossil evidence has been found for Neanderthals and modern humans coexisting in Africa,
  • interbreeding occurred just after our species had left Africa
  • Neanderthals, the study team says, probably mixed with early Homo sapiens just after they'd left Africa but before Homo sapiens split into different ethnic groups and scattered around the globe.
  • 60,000 years ago
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