Genomic research suggests that less than 1,300 human ancestors survived this unknown catastrophe for some 117,000 years.
could even evolve, new research suggests that our ancient ancestors were faced with near-total extinction.found genomic evidence of a staggering population implosion of an unknown human predecessor 900,000 years ago. After some mysterious catastrophe, the findings suggest that there were only 1,280 breeding individuals remaining, down from a high of 100,000 — numbers that wouldn't climb again for another 117,000 years.
"If this is correct," he continued, "then one imagines that it would require a stable environment with sufficient resources and few stresses to the system."The period between 600,000 and 1,000,000 years ago was a turbulent time for pre-human history. Mini ice ages and droughts came and went, and the climate, all around, was unstable. Much remains unanswered on how our ancestors were born from those conditions.
Based on their findings, it's possible that this bottleneck may have been the evolutionary pressure that gave rise to. Forcing our ancestors to live in a small area together could have wiped out up to two-thirds of genetic diversity, the researchers said, giving rise to distinctive human features like a large brain.
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