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SUMMARY:Reconstructing humanity’s ghosts: genetic evidence for interbree
 ding among archaic humans - Trevor Cousins
DTSTART:20240516T121000Z
DTEND:20240516T130000Z
UID:TALK211966@talks.cam.ac.uk
CONTACT:73285
DESCRIPTION:Advances in technology allow a detailed view of an individual
 ’s complete genome sequence. This enables researchers to reconstruct the
  last few million years of human evolution\, revealing for example how arc
 haic humans such as Neanderthals and Denisovans interbred with modern huma
 ns. Using statistical models\, we find evidence for modern humans interbre
 eding with a “ghost” population\, i.e. a group of archaic humans that 
 are now extinct and from whom we have no direct genetic data. We estimate 
 that this ghost population diverged from our ancestors ~1.5 million years 
 ago\, went extinct in the last ~300 thousand years\, and that about 20% of
  every modern human’s genome derives from an interbreeding event with th
 is group. 
LOCATION:Richard King room\, Darwin College
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