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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
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.
Daryl Bambic

Planet of the Apemen: Battle for Earth | Watch Free Documentary Online - 0 views

topdocumentaryfilms.com/of-the-apemen-battle-for-earth

neanderthal homosapiens evolution

shared by Daryl Bambic on 19 Dec 11 - No Cached
  • Daryl Bambic on 19 Dec 11
     
    Why homo sapiens survived and the other hominids did not.
Daryl Bambic

Mike Morwood: Archaeologist whose 'hobbit' discovery sparked fresh debate on human evol... - 0 views

www.independent.co.uk/...n-human-evolution-8773287.html

hobbit evolution

shared by Daryl Bambic on 24 Sep 13 - No Cached
  • far from being the linear narrative of successive waves of colonisation out of Africa, as once thought, the process was, in fact, one with numerous twists and turns involving many different species.
  • among the most outstanding discoveries in paleoanthropology in over half a century.
  • because the cave also unearthed sophisticated stone tools similar to others found around the world in Homo erectus sites
  • ...6 more annotations...
  • Flores tools were tiny, the right size for people of only 3ft tall with a brain the size of a chimp or grapefruit
  • Remarkably, the skull was found in a layer of sediments dating back only 18,000 years, long after the Neanderthals had vanished from the face of the Earth, having lost the evolutionary battle to Homo sapiens, the sole human species on Earth by then. This had huge ramifications for the varying theories of human evolution.
  • it could have been a descendant of Homo erectus that arrived early on Flores, perhaps using boats, and which, becoming stranded, evolved its petite size as an adaptation to the limited food supply available.
  • They also proposed the unimaginable, that Homo floresiensis lived contemporaneously on Flores with Homo sapiens.
  • Detractors
  • isease of some sort that produced the specimen’s unusual features.
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