Key Concepts in Physical Anthropology and Archaeology Chap 11-2
Part Physical Anthropology and Archaeology
Page 6-7
Chapter 11 - Modern Homo Sapiens: Learning objectives include evaluating origin theories, describing Upper Palaeolithic culture and tools, and discussing human migration.
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The Emergence of Modern Humans
Modern humans may have appeared as early as 200,000 years ago.
Current discussions focus on the two primary hypotheses for origin: Single-Origin Hypothesis (origin in Africa) and Multiregional Hypothesis (evolution in multiple locations).
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Single-Origin Hypothesis
Suggests modern humans evolved in Africa and spread globally, replacing archaic humans.
Evidence from genetics indicates a common ancestor may have lived around 200,000 years ago.
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Multiregional Hypothesis
Proposes that modern humans evolved concurrently in various regions, sustained by sufficient gene flow.
Both hypotheses seek evidence in fossil records, genetic data, and archaeological findings.
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Assimilation Theory
Combines aspects of the previous theories suggesting that while replacement occurred, interbreeding took place with local populations.
Genetic evidence shows Neandertal and Denisovan DNA persists in modern humans, suggesting interbreeding enriched modern human genetics.
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Cultural Evidence in Archaeology
Upper Palaeolithic cultures are marked by advanced tool-making and symbolic art.
Societies were mobile, relied on various food sources, and began establishing trade.
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Upper Palaeolithic Tools and Adaptations
Tools included sophisticated techniques like pressure flaking for crafting microliths.
Tools allowed better efficiency in food procurement, shifting hunting practices.
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Migration Theories into the New World
Theories suggest migrations across Beringia, some possibly by boat along coastlines.
The debate continues regarding the timing and routes of these migrations.
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Early Cultures in the New World
Palaeo-Indians displayed varied lifeways—hunting big game in the north and more sedentary living in forested areas.
Evidence of sophisticated hunting strategies, social organization, and adaptation to changing environments is prominent.