modern_human_origins - The emergence of modern humans I....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 The emergence of modern humans I. The problem II. Two hypotheses A. Replacement, “Out of Africa,” or Weak Garden of Eden model B. Multiregional model III. Evaluating the hypotheses A. Fossil evidence 1. Middle East Neandertals 2. Asian hominids B. Archaeological evidence 1. Transition from Mousterian to Aurignacean 2. “Intermediate” tool industries C. Genetic evidence 1. Mitochondrial Eve 2. Y chromosome data 3. Human and chimpanzee genetic variation 4. Neandertal DNA The problem: 100,000 y bp • Neandertals in Europe H. heidelbergensis in E. Asia • Modern-looking humans in the Mid- East and Africa The problem: 30,000 y bp (p. 374) • Anatomically modern humans have spread throughout the Old World Replacement, “Out of Africa,” or Weak Garden of Eden model (p. 371) • Human populations were isolated during the Middle Pleistocene H. erectus & H. sapiens evolved independently Replacement, “Out of Africa,” or Weak Garden of Eden model (p. 388) Between 100-200 k y bp, modern humans arose in Africa and spread outward replacing Neandertals Little or no gene flow between modern humans and Neandertals Evolutionary effect of migration
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Multiregional model (p. 388) Gene flow links human populations:
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

modern_human_origins - The emergence of modern humans I....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online