Human origins and evolution. Gil McVean, Department of Statistics, Oxford. Questions about human origins. What defines a human? What does the fossil record tell us? What are the genetic changes that make us human? What are the genetic changes that make people(s) different?.
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Human origins and evolution
Gil McVean, Department of Statistics, Oxford
Ebrain = 0.12 x Mbody 2/3
Hacia JG (2001)
Origin of H. sapiens sapiens
Human – chimp split
Australopithecus afarensis (Lucy)
Early Homo species
Brain size versus height
Onset of Lower Pleistocene glaciations at ~2 million years ago with formation of permanent ice sheets and sharp cooling. Africa becomes drier.
Hobbit on left compared with modern human
Shared features: Cranial vault height high and domed, brow ridges lighter or absent, chin present
mtDNA sequences say no…
Ovchinnikov et al (2000)
Plagnol and Wall (2006)
Stefansson et al (2005)
What are the genetic differences that make us human?
Feuk et al (2005)
Wang et al (2006)
Enard et al. (2002)
What are the genetic differences that make people and peoples different?
Hamblin and Di Rienzo (2000)
Lamason et al (Science 2005)
Voight et al. (2005)