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Data Sources

Scientific Paper 

Huff, C. D., et al. "Mobile elements reveal small population size in the ancient ancestors of Homo sapiens." PNAS (January 19, 2010).

Images

  • Human population density, 2000 (SEDAC)
  • Homo ergaster (Reconstruction by AMNH; photo by Roderick Mickens, AMNH
  • Migration paths (AMNH)