Human population bottleneck 20-15,000 years ago aligns with pyramid civilization collapse. Global population decrease between 20,000-15,000 years ago identified by 1000 Genomes Project All populations outside Africa experienced severe reduction Bottleneck occurred after Last Glacial Maximum humid phase
Recent genetic research documents a severe human population bottleneck approximately 900,000 years ago — ancient humanity was nearly wiped out when the global population dwindled to around 1,280 reproducing individuals for a period of roughly 120,000 years. Researchers estimate ancestral population loss of up to 98.7%, drastically reducing genetic diversity in modern populations. The exact causes remain uncertain, though climate shifts are suspected. The research was published in Science and represents one of the strongest genetic cases for a near-extinction event in human prehistory, though some researchers note the findings are not definitive.
Key Facts
- Global population decrease between 20,000-15,000 years ago identified by 1000 Genomes Project
- All populations outside Africa experienced severe reduction
- Bottleneck occurred after Last Glacial Maximum humid phase
- Coincided with 4,000-year drought in Northern Hemisphere
- Unprecedented super drought caused loss of food and water resources
- Population shifts in Europe and East Asia occurred 19-14,000 years ago
- New populations replaced previous inhabitants after glacial period
Source: How Old Are the Great Pyramids? Surprising Distant Timeline of Giza Pyramids & Sphinx by Curious Being