The video argues that the scale mismatch between humans and megafauna challenges simple human-overkill models. A Late-Pleistocene effective population estimate of about 10,000 is not a head count: total Old World population at the Last Glacial Maximum is estimated at roughly 2.1–3.0 million, and western Europe's population around 500,000 years ago is estimated at up to 25,000. People often lived in small mobile bands, but early populations were not uniformly tiny. Mammoth and step-bison abundance estimates of hundreds of thousands and millions, respectively, are plausible; a mammoth could eat up to roughly 150 kg of vegetation daily, and some giant ground sloths exceeded 3,000 kg. Kill sites exist for some species, but they do not demonstrate sustained, continent-wide mass slaughter across most extinct megafauna. The mismatch complicates overkill accounts rather than settling them.
Video argues population scale challenges simple human overkill models
Key facts
- Models place Late-Pleistocene human effective population at about 10,000 breeding individuals, but that is not a total head count; the Old World census population at the Last Glacial Maximum is estimated at roughly 2.1–3.0 million.
- Small mobile forager bands existed, but prehistoric population size varied; western Europe's population around 500,000 years ago is estimated at up to 25,000.
- The video argues that the scale mismatch challenges simple overkill models; the demographic comparison alone does not disprove overkill.
- Mammoth abundance in the hundreds of thousands and step-bison abundance in the millions are plausible estimates rather than directly observed head counts.
- Woolly mammoths are estimated to have consumed up to roughly 150 kg of vegetation daily, and some giant ground sloths exceeded 3,000 kg.
- Kill sites are known for some extinct megafauna, but they do not demonstrate sustained, continent-wide slaughter across most extinct species.
Sources
Not all early human societies were small-scale egalitarian ...aeon.co
A grand research project created our origin myth that early human societies were all egalitarian, mobile and small-scale.
Early humans also drove megafaunal extinctionswildlife.org
“About 13,000 years ago, North America had a mammal megafauna community that was more diverse than in modern-day Africa — woolly mammoths, ...
Megafauna and ecosystem function from the Pleistocene to ...pnas.org
In this paper, we review evidence for megafaunal impacts on ecosystem function, on timescales ranging from the Late Pleistocene to the present.
Why early humans radically changed their toolkits 200000 ...newscientist.com
A decline in ancient megafauna in the Middle East coincided with a shift towards smaller, lighter toolkits in the archaeological record ...
How Losing the Megafauna Made Us Humananthropology.net
New research argues that the extinction of giant Ice Age animals reshaped human biology, culture, and even our oldest friendship—with the ...
Estimates of historical world populationen.wikipedia.org
This article lists current estimates of the world population in history. 50% (estimates range between 150 and 330 million). Late Pleistocene human population ...
Prehistoric demographyen.wikipedia.org
Such models suggest a human effective population size of the order of 10,000 individuals for the Late Pleistocene. This includes only the breeding population ...
The Middle Pleistocene population of Europe could have ...cenieh.es
CENIEH researchers lead a work which estimates the distribution and density of the human population in western Europe 500,000 years ago.
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